hvm100 manual - electronic version

Model HVM100Human Vibration Meter

Technical Reference Manual

IHVM100.01 Rev J

Technical Reference Manual

Larson Davis HVM100

Copyright

Copyright 2006, 2007, 2008, 2009, 2010 by PCB Piezotronics, Inc. This manual is copyrighted, withall rights reserved. The manual may not be copied in whole or in part for any use without prior writtenconsent of PCB Piezotronics, Inc.

Disclaimer

The following paragraph does not apply in any state or country where such statements are notagreeable with local law:

Even though PCB Piezotronics, Inc. has reviewed its documentation, PCB Piezotronics Inc. makes nowarranty or representation, either expressed or implied, with respect to this instrument anddocumentation, its quality, performance, merchantability, or fitness for a particular purpose. Thisdocumentation is subject to change without notice, and should not be construed as a commitment orrepresentation by PCB Piezotronics, Inc.

This publication may contain inaccuracies or typographical errors. PCB Piezotronics, Inc. willperiodically update the material for inclusion in new editions. Changes and improvements to theinformation described in this manual may be made at any time.

Record of Serial Number and Purchase Date

HVM100 Purchase Date________ Serial Number: ___________

Recycling

PCB Piezotronics, Inc. is an environmentally friendly organization and encourages our customers tobe environmentally conscious. When this product reaches its end of life, please recycle the productthrough a local recycling center or return the product to:

PCB Piezotronics, Inc.Attn: Recycling Coordinator1681 West 820 NorthProvo, Utah, USA 84601-1341

where it will be accepted for disposal

Table of ContentsChapter 1 Introduction 1-1

About This Manual .................................................................................................1-1

Accessories .............................................................................................................1-3

Standard Accessories .........................................................................................1-3

Optional Accessories..........................................................................................1-3

Transducers ...................................................................................................1-3

Calibrator.......................................................................................................1-3

Cables ............................................................................................................1-3

Adaptors ........................................................................................................1-4

Cases..............................................................................................................1-4

Power Supply ................................................................................................1-4

Software ........................................................................................................1-4

Selecting the Proper Transducer .............................................................................1-5

Triaxial Accelerometers ................................................................................1-7

Single Axis Accelerometers ..........................................................................1-9

Modes of Operation ..............................................................................................1-10

Frequency Weighting Selections ..........................................................................1-10

Band Limiting Filters .......................................................................................1-11

Chapter 2 Getting Started 2-1Switching HVM100 On ..........................................................................................2-1

Menu Navigation ....................................................................................................2-1

Alpha Numeric Menu Function .........................................................................2-2

Indexed Menu Function .....................................................................................2-3

Key Board Functions ..............................................................................................2-4

Setup Key................................................................................................................2-4

Mode Selection ..................................................................................................2-5

Averaging Time .................................................................................................2-5

Time History Settings....................................................................................2-6

Store Time..........................................................................................................2-7

Auto Store ..........................................................................................................2-7

2nd History.........................................................................................................2-8

Vibration Mode Weighting .....................................................................................2-8

Hand Arm Mode Weighting ...................................................................................2-9

Whole Body Weighting Mode................................................................................2-9

HVM100 Manual ii-i

Chapter 3 Tools Menu 3-1Tools Key................................................................................................................3-1

Accelerometer ....................................................................................................3-1

Display Units......................................................................................................3-2

Integration ..........................................................................................................3-3

Sum Factor X,Y, Z.............................................................................................3-4

AC/DC Output ...................................................................................................3-4

AC/DC Output Settings.................................................................................3-7

Baud Rate...........................................................................................................3-8

Handshaking..................................................................................................3-8

Print History Selection .......................................................................................3-8

Erase All Files ....................................................................................................3-9

Erase Setups .....................................................................................................3-10

Header 1,2,3 .....................................................................................................3-11

Language..........................................................................................................3-12

Date and Time..................................................................................................3-13

Chapter 4 Range Menu 4-1Range Key...............................................................................................................4-1

Auto Range ........................................................................................................4-1

Gain X, Y, Z.......................................................................................................4-2

Cal Level ............................................................................................................4-2

Calibrate X, Y, Z................................................................................................4-3

Sensitivity X, Y, Z .............................................................................................4-4

Reference Acceleration ......................................................................................4-5

Hand Arm Exposure Action Value ....................................................................4-5

Chapter 5 Printing 5-1Printing to a Windows Hyperterminal ....................................................................5-1

Chapter 6 Storing and Recalling Data Files and Setups 6-1STORE Key ............................................................................................................6-1

Storing a Setup ...................................................................................................6-1

Storing a File ......................................................................................................6-3

Temporary Data Storage - File Register 00 .......................................................6-4

Data Storage - File Registers 01 thru 99 ............................................................6-5

Preserving the File Counter At Power-Off ........................................................6-5

Recall Key...............................................................................................................6-6

Recalling a Setup ...............................................................................................6-6

ii-ii HVM100 Manual

Recalling Setup Register S0 at Power-On .........................................................6-7

Recalling a File ..................................................................................................6-8

Chapter 7 Taking Measurements/ Viewing Data on the HVM100 7-1Run/Stop Key..........................................................................................................7-1

Overload Detection ............................................................................................7-1

Under-Range Indicator (?) .................................................................................7-2

Run-Interrupted Indicator (!) .............................................................................7-2

History Key.............................................................................................................7-3

Viewing Time History with 2nd History turned on ...........................................7-5

Data Key .................................................................................................................7-6

Chapter 8 Powering the HVM100 8-1Checking the Remaining Battery Voltage .........................................................8-1

Installing New Batteries..........................................................................................8-1

Using External Power .............................................................................................8-4

Chapter 9 Connections on the HVM100 9-1Serial Interface Port ................................................................................................9-2

Pinout .................................................................................................................9-2

Cables Used........................................................................................................9-3

Transducer Connection ...........................................................................................9-4

Pinout .................................................................................................................9-4

External Power Connection ....................................................................................9-5

Pinout .................................................................................................................9-5

Larson Davis Adapter ........................................................................................9-5

AC/DC Output Connector..................................................................................9-6

Pinout .................................................................................................................9-7

Chapter 10 Chapter 10 Adaptor Resonances 10-1Conclusion ............................................................................................................10-1

Mechanical............................................................................................................10-1

Measurements .......................................................................................................10-3

Frequency Response Measurements................................................................10-3

ADP080A + SEN041 .......................................................................................10-3

ADP081A + SEN041 .......................................................................................10-5

ADP082A + SEN041 .......................................................................................10-6

HVM100 Manual ii-iii

Appendix A Specifications A-1General Characteristics ..........................................................................................A-1

Type Precision..............................................................................................A-1

Effects of Temperature.................................................................................A-2

Effects of Humidity......................................................................................A-2

Limits of Temperature and Humidity...........................................................A-2

Effects of Magnetic Fields ...........................................................................A-2

Effects of Mechanical Vibrations.................................................................A-2

Stabilization Time ........................................................................................A-2

Data Storage .................................................................................................A-3

Data Communications ..................................................................................A-3

Digital Display .............................................................................................A-3

Real-time Clock/Calendar ............................................................................A-3

Run-time Clock ............................................................................................A-3

Power Supply ...............................................................................................A-3

Dimensions/Weight ......................................................................................A-3

Declaration of Conformity ................................................................................A-4

Outputs ..............................................................................................................A-5

Transducer Electrical Impedance......................................................................A-5

Direct Input ..................................................................................................A-5

ICP® Input ...................................................................................................A-5

Charge Input .................................................................................................A-6

Functions Measured ..........................................................................................A-6

Reference Acceleration .....................................................................................A-6

Reference Calibration Frequency......................................................................A-7

Reference Calibration Vibration .......................................................................A-7

Frequency Weighting Curves ................................................................................A-8

Fa (Flat 0.4 Hz to 100 Hz)............................................................................A-8

Fb (Flat 0.4 Hz to 1260 Hz) Frequency Weighting......................................A-9

Fc (Flat 6.3 Hz to 1260 Hz), Wh, and Ws Frequency Weighting. .............A-12

Wb, Wc, and Wd Frequency Weightings...................................................A-13

We, Wj, and Wk Frequency Weighting .....................................................A-15

Wg Frequency Weighting (Defined in BS6841:1987)...............................A-17

Wm (Whole Body) Frequency Weighting .................................................A-18

Typical Measurements Ranges .......................................................................A-20

Vibration - Fa .............................................................................................A-20

Vibration - Fb, Fc, Ws................................................................................A-21

Hand Arm - Wh..........................................................................................A-22

ii-iv HVM100 Manual

Whole Body - Wm .....................................................................................A-23

Whole Body - Wc.......................................................................................A-24

Whole Body - Wd, We...............................................................................A-25

Whole Body - Wg ......................................................................................A-26

Whole Body - Wb, Wj, Wk........................................................................A-27

Appendix B Glossary B-1Table of equations..................................................................................................B-1

RMS Acceleration ........................................................................................B-1

RMS Acceleration in Decibels .....................................................................B-1

Allowed Exposure Time...............................................................................B-2

Energy Equivalent RMS Acceleration .........................................................B-2

Running RMS Acceleration LINEAR..........................................................B-2

Running RMS Acceleration EXPONENTIAL ............................................B-3

Vibration Dose Value...................................................................................B-3

Maximum Transient Vibration Value ..........................................................B-3

Minimum Transient Vibration Value...........................................................B-3

Long Term Maximum Peak .........................................................................B-3

Short Term Maximum Peak .........................................................................B-4

Long Term Crest Factor ...............................................................................B-4

Short Term Crest Factor ...............................................................................B-4

Summed Instantaneous Acceleration ...........................................................B-4

Appendix C Serial Interface Commands C-1Setup and Query Commands .................................................................................C-1

Syntax for setup commands ..............................................................................C-1

Syntax for Query commands.............................................................................C-2

System Parameters (Q’s and S’s)...........................................................................C-2

Mode Specific Parameters ................................................................................C-3

Read Data Commands ...........................................................................................C-9

Read Time History Commands............................................................................ C-10

Control Commands .............................................................................................. C-12

Appendix D Frequency Response Curves D-1

Appendix E Miscellaneous Information E-1DC Output Calibration........................................................................................... E-1

AC/DC Outputs...................................................................................................... E-3

DC Output ......................................................................................................... E-3

AC Output ......................................................................................................... E-4

HVM100 Manual ii-v

Typical Measurement Ranges for Hand-Arm and Whole Body Measurements ... E-5

ICP Accelerometers .......................................................................................... E-5

Typical Measurement Ranges for General Purpose Vibration Measurements...... E-7

ICP Accelerometers .......................................................................................... E-7

Appendix F Serial Number Backup F-1Setting Serial Number Backup.......................................................................... F-1

Serial Number Reset ......................................................................................... F-1

Failure of Serial Number Reset......................................................................... F-2

ii-vi HVM100 Manual

C H A P T E R

1 IntroductionThank you for purchasing the Human Vibration Meter fromLarson Davis. The HVM100 is a powerful but small vibra-tion measurement tool. This Handheld vibration analyzerwill allow a variety of applications to be performed includ-ing; Whole Body Vibration analysis, Hand-Arm Vibrationanalysis, and general purpose vibration analysis.

This full featured vibration analyzer features 3 inputchannels, a sum channel, a variety of frequency weightingand band limiting settings, single and double integration,displayed data in a variety of units, and independent AC orDC outputs for all 3 channels simultaneously.

We invite you to read this manual to obtain the best resultsfrom your HVM100.

About This Manual

This manual has 9 chapters and 5 appendices covering thefollowing topics:

Chapter 1 - Introduction

In this chapter we will discuss the functionality andcapabilities of your HVM100. We will also go into detailwith regards to frequency weightings and screen and menufunctionality.

Chapter 2 - Getting Started

This chapter will describe in detail the functionality andselections contained in the Setup menu.

Chapter 3 - The Tools Menu

This chapter will describe in detail the functionality andselections contained in the Tools menu.

HVM100 Manual Introduction 1-1

Chapter 4 - The Range Menu

This chapter will describe in detail the functionality andselections contained in the Range menu. This includescalibration of the HVM100.

Chapter 5 - Printing

This chapter will describe how to download data from theHVM100.

Chapter 6 - Storing and Recalling Data Files and Setups

This chapter will describe in detail how to store data andsetup information in the HVM100’s on-board memory.

Chapter 7 - Taking Measurements/Viewing Data on the HVM100

This chapter will describe in detail how to use the Run/Stopkey to take measurements, and how to view that data on thedisplay of the HVM100.

Chapter 8 - Powering the HVM100

This chapter will describe the two ways in which to powerthe HVM100.

Chapter 9 - Connections on the HVM100

This chapter will describe all of the external connectors onthe HVM100.

Chapter 10- Adaptor Resonances

This chapter will describe the frequency response functiondata for the ADP08XA Adaptors.

Appendix A - Specifications

Appendix B - Glossary

Appendix C - I/O Commands

Appendix D - Frequency Response Curves

Appendix E - Miscellaneous Information

Appendix F - Serial Number Backup

1-2 HVM100 Manual

Accessories

Selection of the proper accessories for use with yourHVM100 is one of the most important functions you canperform. The transducer is especially critical to obtaininggood results.

Standard Accessories

The HVM100 is delivered with the following standardaccessories:

• User Manual

• Batteries, 2 x AA, IEC Type LR6

Optional Accessories

Transducers • SEN020 to SEN022 (Accelerometers, 3 axis ICP)• SEN023 to SEN025 (Accelerometers, single axis ICP)• SEN026 (3 axis ICP, palm accelerometer)

• SEN027 (Accelerometer, seat pad)

• SEN040F (Accelerometer, 3 axis, 2 - 5 kHz, ICP)

• SEN041F (Accelerometer, 3 axis, 2 - 5 kHz, ICP)

Calibrator • 394C06 (Hand-held accelerometer calibrator)

Cables • SEN020-CBL to SEN022-CBL (3 axis accelerometersincluding cables)

• SEN023-CBL to SEN025-CBL (single axisaccelerometers including cables)

• SEN026-CBL (3 axis ICP, palm accelerometerincluding cable)

• SEN027-CBL (Cable and seat pad accelerometer)

• SEN040F-CBL (Accelerometers, 3 axis, 2 - 5 kHz, ICP,including cables)

• SEN041F-CBL (Accelerometers, 3 axis, 2 - 5 kHz, ICP,including cables)

• CBL006 (Cable, serial computer, DB9S-mDIN08)

HVM100 Manual 1-3

• CBL120 (Cable, 3 x 10-32 male to 4-pin Lemofemale)

• CBL121 (cable, 3 x BNC male to 4-pin Lemofemale)

• CBL124 (Cable, AC/DC Output, 3 X BNC toSwitchcraft)

• CBL125 (Cable, Mini 4-pin to 4-pin Lemofemale)

• CBL158 (Cable, 4-pin Microtech to 4-pin Lemomale)

Adaptors • ADP060 (Adapter, hand accelerometer)

• ADP061 (Adapter, handle accelerometer)

• ADP062 (Adapter, clamp accelerometer)

• ADP063 (Adaptor, palm accelerometer)

• ADP064 (HVM100 adapter kit)

• ADP080A (Adapter, hand accelerometer)

• ADP081A (Adapter, handle accelerometer)

• ADP082A (Adapter, clamp accelerometer)

• ADP084A (Vibration adaptor kit including ADP080A,ADP081A, ADP082A and ADP063)

• 080A09 (Adaptor, probe tip with 10-32 connector)

• 080A17 (Adaptor, triaxial mounting)

• 080B16 (Adaptor, triaxial mounting, for SEN024 andSEN025 with 5-40 thread)

Cases • CCS020 (HVM100 hard shell carrying case)

• CCS028 (Soft case with belt clip for HVM100

Power Supply • PSA027 (Power supply, 90-264 VAC to 12 VDC)

Software • Blaze software (SWW-BLAZE-HVM) for setup,control and high speed data download

• HVManager software permits both users andmanufacturers of vibrating equipment to create PC-basedvibration data bases containing data measured using anHVM100 Human Vibration Meter

• DNA (Data, Navigation and Analysis) software forinstrument control, high speed data download, datastreaming with real-time data display on PC, advanceddata graphic presentations and powerful reportgeneration features

1-4 HVM100 Manual

• HVM Programmer software, available from LarsonDavis, can be used to programs the languages and updatethe firmware when new versions are available for theHVM100.

Selecting the Proper Transducer

There are several important considerations when selecting atransducer to perform your measurements. The first decisionthat must be made is what type of transducer to use.

There are two general categories of accelerometers, ICP®

and Charge.

• ICP® accelerometers are also called “Voltage Mode” or“Low impedance” and may be known by various othervendor trade names. ICP® is PCB’s registered trademarkwhich stands for “Integrated Circuit Piezoelectric” andidentifies PCB sensors which incorporate built-in, signalconditioning electronics. The built-in electronics serve toconvert the high impedance charge signal that isgenerated by the piezoelectric sensing element to ausable low impedance voltage signal which can bereadily transmitted over ordinary 2 wire or coaxial cablesto any voltage readout or recording device. The lowimpedance signal can be transmitted over long cabledistances and used in dirty field or factory environmentswith little signal degradation.

NOTE: The HVM100 has built-in ICP®

power supplies and charge amplifiers.This will allow the HVM100 to interfacedirectly with ICP® or charge transduc-ers, and eliminates the need for externalsignal conditioning.

• Charge mode sensors output a high impedance, electricalcharge signal that is generated by the piezoelectricsensing element. This signal is extremely sensitive tocorruption from environmental influences. To conductaccurate measurements, it is necessary to condition thissignal to a a low impedance voltage before it can be inputto a readout or recording device. A charge amplifier orin-line charge converter is generally used for thispurpose.

The final way to use the input of the HVM100 is through thedirect input. This would require the use of some kind ofexternal signal conditioning unit such as an external sourceof ICP® power, or an external charge amplifier.

HVM100 Manual 1-5

The next item to consider is the sensitivity of the transducer.The sensitivity of the accelerometer will depend on theapplication being performed. If the application is a highvibration level application, a low sensitivity should beselected. For low vibration level applications a highsensitivity accelerometer should be used.

NOTE: Transverse sensitivity is alsosomething to be considered. Transversesensitivity is defined as: The unwantedoutput signal of a motion sensor whensubjected to motion perpendicular to thesensitive axis-usually expressed as a per-cent of the normal axis sensitivity. Forexample if you are using a tri-axialaccelerometer and place an input signalon the Z axis, your X axis could also bereading a level even though there isreally no x-axis signal present.

The resonant frequency of the transducer should also beconsidered. The resonant frequency is defined as thefrequency at which the structure will readily vibrate. Foraccelerometers, there is one frequency where theaccelerometer will vibrate much easier than at otherfrequencies. At this point, the reading will be very high, andcould overload the input of the HVM100. However, for mostof the recommended accelerometers, the resonant frequencyis well above the upper limit of the HVM100, and willsubsequently be masked out by the low pass filter on theHVM100. If the resonant frequency becomes an issue, it isrecommended that an external mechanical filter be used.

Frequency range is the next thing to take into consideration.Most recommended accelerometers will have a frequencyrange sufficient for use with the HVM100. See thefrequency response tables (appendix A) and graphs(appendix D) for more information on the HVM100’sfrequency response.

The last thing to consider is temperature, humidity, and otherphysical agents, such as mounting surface, mass andenvironment. The mass of the accelerometer should ideallybe no more that 1/50 of the mass of the object beingmeasured. A ratio of as little as 1/10 is acceptable in extremecircumstances. The affect of these elements should alwaysbe considered when choosing a transducer. Please also beaware of the different methods of mounting anaccelerometer and the effects of each of those methods onthe measured data.

The following is a selection from the PCB catalog listing thecharacteristics of a transducer. Please note the items that wehave discussed and note where they appear in a transducerspecification

1-6 HVM100 Manual

Triaxial Accelerometers .

Specification Unit SEN020 SEN21F SEN026

Voltage Sensitivity mV/g 1 10 10

Frequency Range (+/-5%) Hz 0.5 to 5,000 0.5 to 2,500 1 to 9,000

Frequency Range (+/-10%) Hz 0.3 to 6,000 0.5 to 12,000

Mounted Resonant Frequency kHz 25 25 25

Measurement Range +/-g pk 1,500 500 500

Broadband Resolution (1 Hz to 10 kHz)

g rms 0.005 0.0005 0.0002

Shock Limit +/-g pk 7,000 7,000 10,000

Operating Temperature Range oF [oC] -65 to +250 [-54 to +121]

-65 to +250 [-54 to +121]

-65 to +250 [-54 to +121]

Amplitude Linearity % +/1 +/1 +/1

Transverse Sensitivity % 5 5 5

Strain Sensitivity g/ 0.001 0.001

Excitation Voltage VDC 20 to 30 20 to 30 18 to 30

Constant Current mA 2 to 20 2 to 20 2 to 20

Output Impedance ohms <100 <100 <200

Output Bias VDC 8 to 12 8 to 12 7 to 11

Discharge Time Constant sec 1.0 to 2.0 .4 to 1.2 1.0 to 3.5

Sensing Element Type Ceramic Ceramic Ceramic

Element Configuration Structure Shear Shear Shear

Electrical Connector type/location 4-Pin/side 4-Pin/side 4-Pin/side

Housing material/sealing Titanium/Hermetic Titanium/Hermetic Titanium/Hermetic

Mounting Thread size 10-32 Female 5-40 Male 10-32 Female

HVM100 Manual 1-7

.

Specification Unit SEN027 SEN040F SEN041F


Frequency Range (+/-5%) Hz 0.5 to 1,000 2 to 4,000 2 to 4,000

Frequency Range (+/-10%) Hz


Measurement Range +/-g pk 10 5,000 500


g rms 0.002 0.03 0.008

Shock Limit +/-g pk 2,000 10,000 10,000

Operating Temperature Range oF [oC] +14 to +122 [-10 to +50]

-65 to +250 [-54 to +121]

-65 to +250 [-54 to +121]

Amplitude Linearity % +/1 +/2.5 +/1


Strain Sensitivity g/

Excitation Voltage VDC 6.5 to 30 18 to 30 18 to 30

Constant Current mA 0.3 to 10 2 to 20 2 to 20


Output Bias VDC 2.8 to 4.5 7 to 11 7 to 11

Discharge Time Constant sec 1.0 to 3.0 1.5 to 3.0 .3 to 1.0



Electrical Connector type/location Integral cable/side 1/4-28 4-Pin/side 1/4-28 4-Pin/side

Housing material/sealing Titanium/Hermetic Titanium/Hermetic Titanium/Hermetic

Mounting Thread size 10-32 Female 5-40 Female 5-40 Female

1-8 HVM100 Manual

Single Axis Accelerometers .

About the HVM100

The HVM100 is a powerful, all digital, vibration analyzer. Itfeatures simultaneous 3 channel measurements, smalllightweight design, easy to read display, portability utilizing2 AA batteries, 115.2 kbps RS-232 interface, three modes of

Specification Unit SEN022 SEN024 SEN025


Frequency Range (+/-5%) Hz 0.5 to 5,000 1 to12,000 1 to 10,000

Frequency Range (+/-10%) Hz 0.3 to 6,000 0.7 to 18,000 0.3 to 12,000


Measurement Range +/-g pk 50 500 50


g rms 0.0001 0.0005 .00016

Shock Limit +/-g pk 7,000 10,000 5000

Operating Temperature Range oF [oC] -65 to +176 [-54 to +80]

-65 to +250 [-54 to +121]

-65 to +200 [-54 to +93]

Amplitude Linearity % +/1 +/1 +/1


Strain Sensitivity g/ 0.001 0.006 0.005

Excitation Voltage VDC 20 to 30 1 to 30 1 to 30

Constant Current mA 2 to 20 2 to 20 2 to 20


Output Bias VDC 8 to 12 8 to 12 8 to 12

Discharge Time Constant sec 1 to 3 .4 to 1.2 .4 to 1.2



Electrical Connector type/location 4-Pin/side 10-32 10-32

Housing material/sealing Aluminum/Epoxy Titanium/Hermetic Titanium/Hermetic

Mounting Thread size 10-32 Male 5-40 Male 5-40 Male

HVM100 Manual 1-9

operation: Hand-Arm, Whole Body, and Vibration, and thecapability to display and print text in a variety of languages.

Modes of Operation

The HVM100 is divided into three modes of operation. Thestandard mode is the vibration mode. This is the modeincluded with the instrument. The other two modes areoptional modes. The Optional modes are Hand-Arm andWhole Body. Each of these modes feature differentfrequency weighting selections as outlined later in thischapter.

Frequency Weighting Selections

NOTE: The Hand-Arm and Whole bodymodes are separately purchased options.These options and the frequency weight-ings associated with these options willnot be available unless they are pur-chased.

To accommodate the multiple operating modes of theHVM100, 13 different frequency weighting filters areavailable. The following table describes the frequencyweighting options available in each of the operating modes.To select the frequency weighting for a particular mode, seethe section in this manual titled Setup Key.

The Hand-Arm mode and the Whole body mode frequencyweighting curves are defined in ISO 8041:2005. The Wg

Mode Frequency Weighting

Vibration Ws (Severity)Fa (0.4 Hz to 100 Hz)Fb (0.4 Hz to 1250 Hz)Fc (6.3 Hz to 1250 Hz)

Hand Arm Wh

Whole Body WmWbWcWdWeWgWjWk

1-10 HVM100 Manual

frequency weighting curve is defined in British Standard6841:1987.

Band Limiting Filters

In addition to defining the frequency weightings for Hand-Arm and Whole Body, ISO 8041:2005 also defines a band-limiting filter to be used with each of the frequencyweightings. Each band-limiting filter is a combination of ahigh-pass and low-pass 2nd order Butterworth filter, 12 dBper octave attenuation, with - 3 dB corner frequencies at thefrequencies listed in table 3 below. When a frequencyweighting is selected in the HVM100 Hand-Arm mode, orWhole Body mode, the HVM100 automatically places boththe weighting filter and the appropriate band-limiting filterin the signal path.

Weighting Band-Limiting Filter

Wh 6.3 to 1250 Hz

Wb,Wc, Wd, We, Wj, Wk 0.4 to 100 Hz

Wm, Wg 0.8 to 100 Hz

HVM100 Manual 1-11

1-12 HVM100 Manual

C H A P T E R

2 Getting Started

This section will introduce you to the keypad andfunctionality of the HVM100.

Switching HVM100 On

If any displays appear during theboot process which refer to SerialNumber or SN, see section "SerialNumber Backup" on page F-1.

To switch the HVM100 On, press the On key.

Menu Navigation

Navigating through the HVM100”s menus is similar tonavigating through other Larson Davis instruments. Themenus are arranged in lists. The appropriate menu key isused to enter the menu, and then the u Up and d Down arrowkeys are used to scroll through the menu. When you come toa setting you want to change, press the c Check key to enterthe modify section of the menu. You can now use the r Rightand l Left arrow keys to scroll through the options for thatitem. After the appropriate selection is in the window, usethe c Check key to select that setting. This will place youback into the main menu where once again the u Up and dDown arrow keys can be used to navigate.

On Key

HVM100 Manual Getting Started 2-1

Alpha Numeric Menu Function

The alpha numeric menu screens include the Header screensand the Calibrator sensitivity screen. These are settings thatrequire the user to enter letters of the alphabet or numeralsinto the field. To change an alpha numeric menu setting,

Step 1 Go to the menu item you wish to change.

Step 2 Press the c key to place the HVM100 into the modify mode. The selection will begin to blink.

Step 3 Use the r and l arrow keys to select a position to modify.

Step 4 Use the u and d arrow keys to select the character you want in that position.

Step 5 Use the r and l arrow keys again to move to the next position. When you move to the next posi-tion, the HVM100 will start you from where you left off. (i.e. if you entered an ‘F’ in the first posi-tion, when you move to the next position, you will be starting from the ‘F’ on that position.

Step 6 Hit the c key or move to the next menu item to accept the change. Anytime you have made a change, the change will automatically be accepted

Header 1

Header 1

Header 1

Header 1Wi

Header 1Wil

2-2 Menu Navigation HVM100 Manual

even if you don’t hit the check key. You can accept the change just by moving to another section of the HVM100.

Indexed Menu Function

The following is an example of how to make a change to anindexed menu item. (An item that has a specific list ofchoices.)

Step 1 Go to the setting you wish to change.

Step 2 Press the c key to place the HVM100 in the mod-ify mode. The selection will begin to blink.

Step 3 Use the l and r arrow keys to scroll through the selections in the menu.

r

r

Step 4 When you come to the selection you desire, stop scrolling.

Header 1Wilson Processin

Operating ModeVibration



Operating ModeHand Arm

Operating Modewhole Body

Operating ModeWhole Body

HVM100 Manual Menu Navigation 2-3

Step 5 To accept the change, either hit the c key or move to the next menu item or to another part of the HVM100.

Key Board Functions

The keyboard on the front of the HVM100 is the maininterface to the instrument. The keyboard consists of 11dedicated function keys, 4 arrow keys and the check key.

In the following section, we will describe the functionalityand selections associated with each key.

Setup Key

The SETUP key places you into the Setup menu. This menuis used to set general system parameters such as operatingmode and frequency weighting. The selections available inthe Setup menu are described below. The Setup menu is a


2-4 Key Board Functions HVM100 Manual

circular menu. You can scroll through and return to the topby continuously pressing the d or u arrow key.

Mode Selection

Hint: This setting is in the Setup menu. To access the Setup menu press the SETUP key and then use the u and d arrow keys to navigate through the menu items.

NOTE: To view each selection, first pressthe c key, and then press the r or l arrowkey to scroll through each selection.

NOTE: The Hand-Arm and Whole bodymodes are separate purchased options.These options and the frequency weight-ings associated with those options willnot be available unless they are pur-chased.

This section is used to set the operating mode. Theselections are Whole body, Hand Arm or Vibration.

Averaging Time



Operating ModeHand Arm


HVM100 Manual Setup Key 2-5

NOTE: An exponential detector isdefined as a detector that maintains amoving average of the signal. The onlyexponential detector in the HVM100 isthe Slow detector. This detector willbegin by taking a 1 second average. Astime moves, the exponential detector willdiscard the first part of the average, asthe next part is collected. A linear detec-tor will take the signal and average overthe averaging time, and then start over.All previously collected samples are dis-regarded in the new linear average.

The averaging time refers to the amount of time data iscollected and averaged before a new average is started. Theselections are Slow, 1 sec, 2 sec, 5 sec, 10 sec, 20 sec, 30sec, and 60 sec. The Slow response is a 1 second exponentialdetector, while the others are linear repeat type averages.The averaging is the same for all Operating modes.

Time History Settings The Averaging time is also used to determine the rate ofstorage for the Time History. The Time History will store theArms value along with the Peak value if the user desires, forthe X, Y, Z, and Sum channels. The Time History buffer islimited to 240 samples, 120 samples if the Peak value isselected. To setup Time History Peak storage, see the 2ndHistory menu section below.


The following are the selections you would encounter whenchanging the Averaging Time:

AveragingSlow

Averaging1 sec

Averaging2sec

Averaging5 sec

Averaging10 sec

Averaging20 sec

2-6 Setup Key HVM100 Manual

Store Time


NOTE: To change the Store Time param-eters, press the c key, use the u and darrows to select the desired value, andthen use the r and l arrows to move to thenext position. Once all positions are setpress the c key or move to any other partof the HVM100 to accept the entry.

The Store Time selection works in conjunction with theAuto Store setting. The Auto Store setting will allow you toautomatically store measurement data at a rate indicated bythe Store Time. The Store Time can be set from 1 minute to99 hours.

Auto Store


NOTE: The data memory in the HVM100is a non-volatile EEPROM chip. Even ifthe batteries go dead for an extendedperiod of time, the stored setups and datawill be retained.

The Auto Store function in the HVM100 will allow you tostore data over time. The Store Time is the rate at which thedata will be stored. At the end of the store time the AutoStore function will store any history data that has beencollected, as well as the overall data from all three channelsand the sum channel. The data will be stored as a file in thememory. After the data is stored, the instrument is resetautomatically and a new set of data is collected. Thelimitation on the memory is 100 files. When the memoryreaches the maximum number of files, it will stop storingdata.


There are three selections in the Auto Store menu:

Averaging30 sec

Averaging60 sec

Store Time hh:mm00:00

Auto StoreOff

HVM100 Manual Setup Key 2-7

The Auto Store is turned off with this setting.

The Auto Store feature will store each time the Store Time isreached. This will continue until all file registers are full.

The Auto Store-Autostop feature will allow you to take afixed length measurement. The Autostop feature will stopthe meter when the Store time is reached, just as if you hadpressed the s key.

2nd History


The 2nd History setting will allow you to store a Peak valuealong with the Arms value that is automatically stored in theTime History buffer. The Peak will be stored for all threechannels and the Sum channel. Turning on the 2nd valuewill cut the number of sample storage space from 240samples to 120 samples.


In the 2nd history selection menu you have the choice ofNone or Peak.

Vibration Mode Weighting


Auto StoreOn

Auto StoreAutostop

2nd historyNone

2nd HistoryPeak

2-8 Vibration Mode Weighting HVM100 Manual


In the vibration mode you can select from the followingweighting selections. Please see the appendix at the end ofthis manual for details on weighting curves. The weightingselection is independent for all channels. Here we onlydepict the X channel data, but the other channels screenswould be the same:

Hand Arm Mode Weighting

As required by ISO 8041:2005 the Hand Arm mode has onlyone weighting selection. Please see the appendix at the endof this manual for details on this weighting curve. Theweighting curve is labeled as Wh. This weighting selectionis for all channels and the sum channel. Because there isonly one selection in the Hand Arm mode, the weightingselection is not present on the Setup menu.

Whole Body Weighting Mode



In the Whole Body mode you can select from the followingweighting selections as required by ISO8041:2005. Pleasesee the appendix at the end of this manual for details on theweighting curves. The weighting selection is independent

Weighting XFa 0.4-100 Hz

Weighting XFb 0.4-1250 Hz

Weighting XFc 6.3-1250 Hz

Weighting XWs Severity

HVM100 Manual Hand Arm Mode Weighting 2-9

for all channels. Here we only depict the X channel data, butthe other channels screens would be the same:

Weighting XWm

Weighting XWb

Weighting XWc

Weighting XWd

Weighting XWe

Weighting XWg

Weighting XWj

Weighting XWk

NOTE: The Wg frequency weightingcurve is defined in BS 6841:1987.

2-10 Whole Body Weighting Mode HVM100 Manual

C H A P T E R

3 Tools Menu

The Tools menu has settings relating to the transducer andsetup information relevant to the instrument. Selectionsinclude communications, printing, headers, etc.

Tools Key

The tools menu functions in exactly the same manner as theSetup menu and has the following selections:

Accelerometer

Hint: This setting is in the Tools menu. To access the Tools menu press the TOOLS key and then use the u and d arrow keys to navigate through the menu items.


This will allow you to select the type of transducer you wishto use. The selections are ICP®, Direct, and Charge. Theserefer to the type of accelerometer being used.

The Direct setting is used to input a direct signal from atransducer. No operational power is provided to thetransducer.

The ICP® setting will provide a 28 Volt 2mA constant currentto each of the three input channels, in order to power up tothree accelerometers. This is used with ICP® typeaccelerometers. The voltage reported on this screen is amonitoring of the ICP® power being provided to the

AccelerometerDirect

AccelerometerICP XDC=10.0V

HVM100 Manual Tools Menu 3-1

transducer. When the transducer is not connected, thisvoltage will read 25 to 26 volts. If you have a transducerconnected and it is working properly, it should be readingbetween 2 and 12 volts depending upon the transducer.

The following table shows the typical bias voltage for thevarious ICP accelerometers that are normally used with theHVM100.

If the reading is 0, then the ICP® power could be shorted toground or have some other problem. Check all connections,cables, and connectors.

This setting would be used to amplify the signal from acharge type accelerometer.

Display Units



The Display Units setting controls how data is displayed andprinted by the HVM100. The HVM100 can display data insix different formats. The selection of the display units willapply to all three channels and the sum channel. Allchannels will have the same units. The choices are: m/s2, cm/s2, ft/s2, in/s2, g, and dB.

Tri-Axial Accelerometers

SEN020SEN022

Single AxisAccelerometers

SEN023SEN024SEN025

Palm-AdapterAccelerometer

SEN026

Seat PadAccelerometer

SEN027

8-12 volts 8-12 volts 7-11 volts 2-5 volts

AccelerometerCharge

3-2 Tools Key HVM100 Manual

NOTE: The HVM100 uses a referenceacceleration of 10-6 m/s2 (velocity refer-ence = 10-9 m/s, displacement reference= 10-12 m) or a reference of 10-5 m/s2

(velocity reference = 10-8 m/s, displace-ment reference = 10-11 m) to displayacceleration, velocity and displacementin dB units. Please see the section in theRANGE key for details on changing thereference acceleration.

Integration


NOTE: Integration is a mathematicalprocess of changing the displayed unitsfrom acceleration to velocity to displace-ment. Single integration changes the dis-played parameter from acceleration tovelocity by dividing the accelerationby:2f (i.e. ft/s2 to ft/s). Double integra-tion changes the parameter from accel-eration to displacement by dividing theacceleration by: 42f2 (i.e. m/s2 tometers).

Integration applies only to the Vibration mode. There is nointegration available in the Hand Arm or Whole BodyModes. Integration is the process of converting the datafrom acceleration, which is the standard method ofdisplaying the data, into velocity and displacement.

Display Unitsm/s2

Display Unitscm/s2

Display Unitsft/s2

Display Unitsin/s2

Display Unitsg

Display UnitsdB

IntegrationNone

IntegrationSingle

IntegrationDouble

HVM100 Manual Tools Key 3-3


Single integration will express the units in velocity, anddouble integration will express the units in displacement.

Sum Factor X,Y, Z


In the process of calculating the sum quantities (the datathat appears under the menu) the HVM100 multiplies theinstantaneous acceleration for each channel by a scalerfactor (sometimes called a k-factor). The HVM100 allowsthe user to select a different k factor for each channel. Thedefault setting is 1.00; however; some applications mayrequire different settings.

NOTE: To change the Sum Factorparameter, press the c key, use the u andd arrows to select the desired value, andthen use the r and l arrows to move to thenext position. Once all positions are setpress the c key or move to any other partof the HVM100 to accept the entry.

The applications that require the Sum Factor to be alteredare specified in certain ISO standards. If you are not tryingto measure according to any specific standard, theappropriate setting for this parameter is 1.00.

AC/DC Output


The AC/DC outputs on the HVM100 are independent andsimultaneous for all three channels. First we will discuss theoutput in general, and then give the specific settings for theAC/DC outputs.


AC output is useful for frequency analysis by an externalanalyzer or for recording in a tape recorder. The DC output

Sum Factor X1.00


is useful for a chart recorder, or to measure the voltageproportional to the RMS or peak value.

The DC output is updated according to the averaging time.If the averaging time is set to slow, the signal on the DCoutput pin for the selected channel will be updated once persecond. If the averaging time is set to 60 seconds, the signalon the DC output pin for the selected channel will beupdated once every 60 seconds.

The AC/DC output connector is a 5 pin switchcraftconnector located on the bottom edge of the instrument. Thepinout is as follows:

Example: Chart recorder output, monitoring theDC output, with an averaging time of 60 seconds.


The signal that is output on each pin is selectable for eachchannel. The selections are the same for each channel. Wewill list the X channel selections, however the availableselections will be the same for all operating modes as well.

The AC output will produce a signal from 0 - 0.5 Volt RMS.

The scale of the DC output is typically 5 mV/dB. The levelTypically varies between 0 Vdc to +1.0 Vdc.

3

4 1

2

5

Pin # Description

1 Ground

2 X - Axis AC/DC Output

3 Y - Axis AC/DC Output

4 No Connection

5 Z - Axis AC/DC Output


AC/DC Output Settings

Setting Description

AC: Weighted

This will weight the output pin for the selected channel according to the weighting selected for that channel. If Channel X has a weighting of Ws, then the output pin for Channel X will produce a Ws weighted AC signal.

AC: Band-Limit

This will weight the output pin for the selected channel according to the Band Limiting filter, specified in chapter 1, for that channel. For example if Channel X has a weighting of Wh, then the output pin for Channel X will produce a band limited (6.3 to 1250 Hz) AC signal.

DC: rms This signal will be a DC voltage with a level proportional to the RMS level displayed on the HVM100.

DC: min This signal will be a DC voltage with a level proportional to the min level displayed on the HVM100.

DC: max This signal will be a DC voltage with a level proportional to the max level displayed on the HVM100.

DC: peak This signal will be a DC voltage with a level proportional to the peak level displayed on the HVM100.

DC: rms This signal will be a DC voltage with a level proportional to the RMS sum level displayed on the HVM100.

DC: min This signal will be a DC voltage with a level proportional to the min sum level displayed on the HVM100.

DC: max This signal will be a DC voltage with a level proportional to the max sum level displayed on the HVM100.

DC: peak This signal will be a DC voltage with a level proportional to the peak sum level displayed on the HVM100.

AC/DC Output XAC: Weighted

AC/DC Output XAC: BandLimit

AC/DC Output XDC: rms

AC/DC Output XDC: min

AC/DC Output XDC: max

AC/DC Output XDC: peak

AC/DC Output XDC: rms

AC/DC Output XDC: min

AC/DC Output XDC: max

AC/DC Output XDC: peak

The weighting filters work inconjunction with the band limitingfilters. See page 1-7.


Only one selection can be made for each channel. ChannelsY and Z will have the same selection of settings. Theweighting selected can be independent for each channel.

Baud Rate


The Baud rate selection will allow you to communicate withthe PC or the serial printer. The choices are as follows:


It is important that the setting on your computer or on theserial printer match the Baud Rate setting of the HVM100.

Handshaking The handshaking on the HVM100 is defaulted to hardware(DTR) handshaking.

Print History Selection


Baud Rate2400

Baud Rate9600

Baud Rate38.4k

Baud Rate115.2k


The print history selection will determine whether or not theHVM100 will send the History Buffer information when thePRINT key is pressed.


This selection will cause the HVM100 to send datacontained in the History buffer to the printer.

With this selection, the HVM will only send the overall datafrom the 3 input channels and the sum channel.

Erase All Files


This allows you to clear the measurement files from thememory of the HVM100. The memory in the HVM100 is anon-volatile memory. If the batteries go dead, themeasurement files will not be lost. The only way to clear outthe file registers is to use the Erase All files menu.

This command will not clear the current measurement, orthe current history buffer information. The R Reset key isused for that purpose. This command will only clear the fileregisters.

To clear all files:


Step 1 Go to the Erase All Files menu item.

Step 2 The following screen will appear. Press the c key. The ‘No’ will start to flash. Press the r key to change the screen to ‘Yes’.

Print HistoryYes

Print HistoryNo

Erase All FilesNo


Step 3 The following screen will now be showing and the’Yes’ will be flashing. Press the c key to erase the files.

Step 4 After pressing the c key, the screen will display the following message. After about 3 seconds the dis-play will return to the Erase All Files screen.

All file registers have now been cleared.

Erase Setups


The HVM100 has the ability to store 10 setups internally inthe memory. This is accomplished, as explained later in themanual, by pressing the STORE key while in the setupmenu. The Erase Setups command is used to clear all of thestored setups from the setup registers.

To clear all setups:


Step 1 Go to the Erase Setups menu item.

Step 2 The following screen will appear. Press the c key. The ‘No’ will start to flash. Press the r key to change the screen to ‘Yes’.

Erase All FilesYes

All Erased

Erase All FilesNo

Erase SetupsNo


Step 3 The following screen will now be showing and the ‘Yes’ will be flashing. Press the c key to erase the setups.

Step 4 After pressing the c key, the screen displays the following message. The display will return to the Erase Setups screen after about 3 to 10 seconds.

All Setups have now been cleared from the setup registers.

Header 1,2,3


The HVM100 has 3 Heading information screens. This willallow you to enter descriptive information into theinstrument, that will then be printed out with the reports.The information can be up to 16 characters in length in eachscreen.

To enter information in the Header screens, follow thesedirections:

NOTE: To change the Header, press the ckey, use the u and d arrows to select thedesired value, and then use the r and larrows to move to the next position.Once all positions are set press the c keyor move to any other part of the HVM100to accept the entry.

Step 1 Go to the Header that you wish to change.

Step 2 You will have either a blank screen, or a screen that has previously entered information.

Erase SetupsYes

All Erased

Erase SetupsNo

Header 1

Header 1


Hint: You can use the reset key to erase all of the existing entries in an alpha-numeric entry. Position the cursor on the Left most position you want erased. Press the R key, and all positions to the right of the cursor, including the cursor position will be erased. If the cursor position is all the way to the left, the entire screen will be erased.

NOTE: The HVM100 will remember thepreviously selected character as youmove positions. If you enter a ‘K’ in the1st position, when you use the r or larrow key to move the next position, youwill begin from the ‘K’.

Step 3 Use the l and r arrow keys to select the position you want to change, and use the u and d arrow keys to change the character in that position.

Step 4 When you have completed all the entries, press the c key to return to the Tools menu. You can now move onto the next header (Header 2) by pressing thed arrow key.

Language



The HVM100 has the ability to display and print in severaldifferent languages. The choices are English, Spanish,Italian, French, German, Portuguese, Czech, and Dutch.Below is an example of one of the language options:

Header 1Wilson Processin

LanguageEnglish

IdiomaEspanol

IdiomaItaliano

LangageFrancais

The HVM100 can only store fourdifferent languages at one time.Contact The HVM Programmersoftware can be used to used selectand load these languages.


Date and Time


NOTE: To change the Date and Timeparameter, press the c key, use the u andd arrows to select the desired value, andthen use the r and l arrows to move to thenext position. Once all positions are setpress the c key or move to any other partof the HVM100 to accept the entry.

The date and time functions can be set in this menu. To setthe date and time, go to this menu item. Press the c key. Youcan now make changes just like the alphanumeric menuitems in the Header screens. Once all changes have beenmade, press the c key again to confirm the changes.

Date00:00 01 Jan 99


C H A P T E R

4 Range Menu

The RANGE key functions are concerned with the level ofinput signals coming into the HVM100.

Range Key

In this menu, Gain is added, Calibration is performed, Auto-Ranging is enabled, and Accelerometer Sensitivity isentered.

Auto Range

Hint: This setting is in the Range menu. To access the Range menu press the RANGE key and then use the u and d arrow keys to navigate through the menu items.

The Auto-Range function in the HVM100 is designed towork with a steady state signal, i.e. an object which isvibrating at or near the level of your test object. Often this isthe object or subject under test. It should be used prior tostarting the actual measurement in order to optimize theinput levels from each of the three axes of the transducer’soutput based on actual vibration levels being produced bythe object or subject under test. It is not meant for use whiletaking data. Before enabling this function, the transducershould be attached to the steady state vibration source to bemeasured. Next, find the Auto-Range display, located in theRange menu. Press the c key to enable auto-ranging. TheHVM100 will use its Auto-Range algorithm to adjust thegain for all three channels such that the steady state inputsignal can be properly measured by the HVM100. (The gainis adjusted so that the signal falls within the top 20 dB of theHVM100’s analog to digital converter’s range.)

The selections for the gain will be either 0, 20, 40, or 60 dB.

Auto-RangeX= 0 Y= 0 Z= 0

HVM100 Manual Range Menu 4-1

Once the gain selection is stable, press the c key to save thesettings. The HVM100 must be stopped and reset before theAuto-Range function can be used.

Gain X, Y, Z


A very efficient way to manually setthe gain is to have the transducermounted on the subject under test, asdescribed in the section Auto Rangeon page 4-1, and check forindications of either under-range,described in the section Under-Range Indicator (?) on page 7-2, oroverload, described in the sectionOverload Detection on page 7-1,and manually adjust the gain asnecessary to avoid both.

The Gain settings in the HVM100 will perform manuallywhat the Auto-Range setting did automatically.

You can select one channel at a time, and manually assign again setting to that channel. The choices are 0, 20, 40, or 60dB.


To set the Gain for the X channel, first press the RANGEkey to open the Range menu. Next press the d arrow keyonce to view the Gain X parameter. Press the c key to enterthe change mode, use the r or l arrow keys to select thedesired value, and press the c key again to confirm thechange. The Gain Y and Gain Z displays are located justbelow the Gain X display. (From the Gain X display pressthe d arrow key once to view the Gain Y display. Press the darrow key again to view the Gain Z display.)

Cal Level


Gain X40 dB

4-2 Range Key HVM100 Manual

NOTE: Calibrators operate at a varietyof frequencies. In order to ensure that thefrequency weighting selection does notaffect the level of the calibration, duringcalibration the frequency weighting isautomatically changed to Fc frequencyweighting which applies a bandlimitingfilter from 6.3 Hz to 1250 Hz. This isindicated by the display of Fc in theupper right of the display during calibra-tion. This should accommodate mostvibration calibrators.

The Cal Level screen will allow you to enter the operatinglevel of your calibrator. The frequency of the calibrator isalso important, please see the adjacent note. To enter a valuefor your calibrator, go to the cal level screen, press the c key,use the r and l arrow keys to select the position and use the uand d arrow keys to change the characters. When the properlevel is entered, press the c key to return to the Rangemenu.The level must always be entered in g’s (rms).

During calibration the gain of the HVM100 should also beset so that the level of the calibrator is within the HVM100’smeasurement range. For example, when using a 1.0 g rmscalibrator and an accelerometer with a sensitivity ofapproximately 100mV/g, the gain should be set to 20 dB.For a 10 mV/g accelerometer, the gain should be set to 40dB. A gain of 60 dB is appropriate for a 1 mV/gaccelerometer. See appendix A for a complete listing of theHVM100’s measurement range.

Calibrate X, Y, Z


The calibrate screens are used to calibrate individualchannels using a calibrator attached to the accelerometer. Tocalibrate the HVM with the accelerometer’s publishedsensitivity, see the next section in this manual. To calibrate:

Step 1 Enter the menu for the channel you wish to calibrate.

Step 2 Make sure the transducer for channel X is firmly attached to the calibrator. If using a tri-axial transducer (e.g. SEN02, SEN027, etc.) be sure the transducer is properly oriented for the axis you wish to calibrate.

Step 3 Start the calibrator.

Cal Level1.000e+00 g rms

NOTE: To change the Cal Levelparameter, press the c key, use the uand d arrows to select the desiredvalue, and then use the r and larrows to move to the next position.Once all positions are set press the ckey or move to any other part of theHVM100 to accept the entry.

HVM100 Manual Range Key 4-3

Step 4 Press the c key on the HVM100. The screen will start to flash values. When the level of your calibrator appears in the screen, and the reading is stable, press the c key again.

NOTE: After a given channel has beencalibrated using the shaker type calibra-tor, the HVM100 calculates the sensitiv-ity of the attached accelerometer. To viewthe sensitivity please see the next sectionin this manual.

This will calibrate channel X of the HVM100. Repeat theprocedure for the channels Y and Z. The Calibrate Y andCalibrate Z displays are located just below the Calibrate Xdisplay. (From the Calibrate X display press the d arrow keyonce to get to the Calibrate Y display, and press the d arrowkey again to get to the Calibrate Z display.)

NOTE: If the integration setting is set to single or double,the HVM100 will not calibrate using a calibrator.Specifically, the Cal Level, Calibrate X, Calibrate Y,Calibrate Z menu items will not be displayed.

Sensitivity X, Y, Z


Another method of calibrating the HVM100 is to use thepublished sensitivity of the accelerometer. This isaccomplished through the Sensitivity menu item.

NOTE: To change the Sensitivity param-eter, press the c key, use the u and darrows to select the desired value, andthen use the r and l arrows to move to thenext position. Once all positions are setpress the c key or move to any other partof the HVM100 to accept the entry.

To enter the sensitivity of the accelerometer, go to the menuitem for the desired channel. Press the c key to enter thechange menu, use the r and l arrow keys to select theposition you wish to change, and the u and d arrow keys tochange the characters.

Note: the sensitivity values areentered using scientific notation, e.g.a transducer with a sensitivity of100.2 mV/g would be entered as1.002e+2 mV/g.

When the correct sensitivity has been entered, press the ckey to confirm the change. The entry procedure is the samefor all channels, and the screens will look the same. Theunits for ICP® and Direct are mV/g (rms), the units forcharge accelerometers are pC/g (rms).

CALIBRATE X Fc9.81 m/s2 rm

Sensitivity X1.000e+2 mV/g

During stabilization (i.e. after the ckey has been pressed once), thecalibration can be cancelled bypressing the on/off key.


Reference Acceleration



The HVM100 uses the following reference values to displayacceleration, velocity and displacement in dB units:

• Acceleration 10-6 m/s2

• Velocity 10-9 m/s,

• Displacement 10-12 m

The following reference values are also available for theuser to select:

• Acceleration 10-5 m/s2

• Velocity 10-8 m/s

• Displacement 10-11 m

Hand Arm Exposure Action Value



The Hand Arm exposure action value default is 2.8 m/s2, butit can be changed to 2.5, 4.0 or 5.0 m/s2. While this value canbe changed in any mode, it is only used for calculatingexposures in Hand Arm mode.

dB re10e-5 m/s2

Exposure re. 2.8 m/s2

HVM100 Manual Range Key 4-5

NOTE: The United Kingdom specifiedthe 2.8 m/s2 action value for single axismeasurements (X, Y or Z). The PhysicalAgents Directive (2002/44/EC) for theEuropean Union calls for a measurementof the vector sum of all three axes (.In this directive, 2.5 m/s2 is specified asthe action level and 5.0 m/s2as themaximum allowable exposure limit.


C H A P T E R

5 Printing The PRINT key is the most efficient method for download-ing data from the HVM100. Pressing the PRINT key willcause the HVM100 to stream formatted ASCII text to theinstrument’s serial port connector.

NOTE: The print key only works if youare currently in the History or Datamenu.

Only the current data in the HVM100 can be printed. Toprint a stored data file, first recall the data file from memoryusing the recall key, and then go through the printingprocess.

Printing to a Windows Hyperterminal

Note that Vista doesn’t have a serialterminal. If one is needed to replacethe functionality of HyperTerminalthen there are several available fordownload, one of which is PuTTY

If using Window XP, another option for retrieving data fromyour HVM100 is printing to a Windows hyperterminalconnection. Hyperterminal is a Windows application that isincluded with every version of Windows XP. This is anoptional installation item, and may not have been installed ifa custom installation of Windows was performed. Thisoption will allow you to print the text into the Hyperterminalscreen, and then cut and paste text into a word processing orspreadsheet application.

To print to a Hyperterminal connection:

External Power Input ConnectorSerial Port

HVM100 Manual Printing 5-1

Step 1 Collect the data in the HVM100.

Step 2 Use the Print History setting (located in the Tools menu), to select whether or not to include Time History data in the printed report.

Step 3 Connect CBL006 to the I/O port on the HVM100, and to the communications port on your computer.

5-2 Printing to a Windows Hyperterminal HVM100 Manual

Step 4 Locate Hyperterminal on your computer. Hyperterminal is usually found in the Start menu, under Programs, and in the Accessories folder.

HVM100 Manual Printing to a Windows Hyperterminal 5-3

Step 5 Select Hyperterminal from the menu. A new connection dialog box will appear.


Step 6 Enter a name, and choose an icon for your Hyperterminal connection.


Step 7 Press the OK button.


Step 8 The Connect to dialog box will appear.


Step 9 The last selection in this box is the ‘Connect using’ selection box. This will allow you to select the Com port you will use to communicate with the HVM100. Select the Com port you plugged your HVM100 into. Press OK.


Step 10 The Communications properties screen will appear. Select the Baud rate (bits per second) that matches the baud rate on your HVM100. The other settings are:

• Data bits: 8

• Parity: None

• Stop Bits: 1

• Flow Control: Hardware


Step 11 Press the OK button.

You have now established a connection for the HVM100.You will notice that in the lower left corner of theHyperterminal screen it states that there is a connection, andwill show how long the connection has been in place.


Left click the Properties button

.

Properties

Settings


Left click the Settings Tab at the top of the window to openthe Setting dialog box.


Configure the items as shown above and click ASCI Setupto open the ASCI dialog box.

Configure the items as shown above and press OK to closethe ASCII dialog box.

Press OK to close the Properties window.

Left click Transfer box which will open the followingdialog box.

Highlight Capture Text and left click.


This will open the following menu

Use the Browse function to identify the file into which youwant the data transferred and press Start.

After the connection has been established, press the PRINTkey on the HVM100


Left click Transfer, highlight Stop on the drop-down menuand left click.

The data can now be found as a Test file in the folderdesignated for saving the transferred file.


C H A P T E R

6 Storing and Recalling Data Files and Setups

This chapter will describe the process of storing data andsetup information in the HVM100’s internal memory.

STORE Key

The STORE key on the HVM100 has two functions. It willallow you to store data files, and setups. The functionality isdetermined by the menu you are currently viewing. If youpress the store key while you are viewing the Data orHistory menu, you will be prompted to store a file. If youpress the STORE key while you are in the Setup, Range, orTools menu, you will be prompted to store a setup.

Storing a Setup

The HVM100 will allow you to store up to TEN uniquesetups; these are assigned setup file registers labeledbeginning with S0 up to S9. You may choose any of theseregisters to store a setup.

To store a setup,

Step 1 Enter the Setup, Tools or Range menu by pressing the SETUP, RANGE or TOOLS key (as in this illustration).

AccelerometerICP

HVM100 Manual Storing and Recalling Data Files and Setups 6-1

Step 2 Press the STORE key.

Step 3 The display will prompt you to store a setup. The flashing number in the lower right corner is refer-ring to the setup register you are currently select-ing.

NOTE: To purge all setup registers, go tothe Tools menu, use the u and d arrowkeys to select the Erase Setups selection.Press the c key, use the r arrow key tochange the selection to Yes, and press thec key again.

Step 4 Select a setup register by pressing the u and d arrow keys until the desired selection appears.

Store SetupS0

Store SetupS3

6-2 STORE Key HVM100 Manual

Step 5 Press the l arrow key to scroll to the naming sec-tion of the screen. You can now enter a name for the setup. Use the u and d arrows to select charac-ters for the positions and the r and l arrow keys to move to the different positions.

Step 6 Press the c key. This will store the setup in the selected register and then place you back into the menu from which you started.

To recall a setup from the setup register, see the next sectionin this manual on the RECALL key.

Storing a File

To store a data file,

Step 1 Press the DATA or HISTORY keys to enter a screen where data is being displayed.

Step 2 Press the STORE key.

Store SetupWilson Proses S3

HVM100 Manual STORE Key 6-3

Step 3 The Store File screen will appear. The number in the bottom right of the screen is referring to the file register where the data will be stored.

Step 4 Use the u and d arrow keys to select the desired file register.

Step 5 Press the l arrow key to scroll over to the naming section of the screen. You can now enter a name for the data file. Use the u and d arrows to select characters for the positions and the r and l arrow keys to move to the different positions.

NOTE: To purge all data files, go to theTools menu, use the u and d arrow keysto select the Erase All Files selection.Press the c key, use the r arrow key tochange the selection to Yes, and press thec key again.

Step 6 Press the c key. The current data has now been stored in the selected register. The data file will also contain all of the setup information that corre-sponds to that data file. When the data file is recalled, all of the setup information can also be viewed. The data can now be reset, and the stored data will not be lost.

To recall a data file into the current memory, see the nextsection on the RECALL key.

Temporary Data Storage - File Register 00

File register 00 is normally used as a temporary data storagelocation. For example, if there is un-stored data in theHVM100 and the off key is pressed, the following screenwill appear.

Select “No” to turn off the HVM100 without saving. Select“Abort” to cancel the request to turn off. Select “Yes” to

Store File01

Store File05

Store FileWilson Proses S5

Store File

6-4 STORE Key HVM100 Manual

store the HVM100’s current data and setup in file register00, and then turn off.

Data Storage - File Registers 01 thru 99

Once all files have been purged (see chapter 3, Tools Menu),automatic and manual storing of files begins with fileregister 01. For example, if all files have been purged andthere is data in the HVM100, pressing the DATA key,followed by the STORE key, will cause the followingscreen will appear (note, the file register shown will be 01).

If all files have been purged, and the Auto Store feature isenabled (see chapter 2, Getting Started), the HVM100 willautomatically store the first file in file register 01. Thesecond file will be automatically stored in file register 02and so on until all 99 file registers are full.

Preserving the File Counter At Power-Off

The file counter, which keeps track of the last file registerused, is saved when the HVM100 is turned off. For example,suppose you store 10 files in file registers 01 thru 10. Then,you turn off the HVM100. When the HVM100 is turned onagain, if you try to store data, the HVM100 will prompt youto store data in file register 11, which is the next empty fileregister (see screen below).

A separate counter is used when you recall files. Forexample, suppose you recall and view files 01 thru 05. Then,you turn off the HVM100. When the HVM100 is turned onagain, if you try to recall a file, the HVM100 will promptyou to recall file register 06, which is the next available fileto view (see screen below).

Store File

Store File

Recall File

No ^Abort Yes

HVM100 Manual STORE Key 6-5

Recall Key

In order to use a setup, or to print a stored file they must berecalled into the current memory of the HVM100. TheRECALL key is again dependent on the menu being viewedwhen the key is pressed. If you are in the Tools, Setup orRange menu and press the RECALL key, you will beprompted to recall a setup. If you are in the Data or Historymenus you will be prompted to recall a data file.

Recalling a Setup

To recall a setup,

Step 1 Enter one of the three valid menus for recalling a setup. The Range menu, the Setup menu, or the Tools menu.

11

6-6 Recall Key HVM100 Manual

Step 2 Press the RECALL key.

Step 3 You will now be prompted to recall a setup.

Step 4 Use the u and d arrow keys to scroll through the setups until the desired setup appears on the screen.

Step 5 Press the c key to recall the setup.

Recalling Setup Register S0 at Power-On

Setup register S0 is defined as the HVM100’s boot setup. Inother words, whenever the HVM100 is turned on, it willautomatically recall setup register S0. Therefore, you canconfigure your HVM100 as desired, save the setup to

Recall SetupS0

Recall SetupWilson Proses S3

06

HVM100 Manual Recall Key 6-7

register S0, and the HVM100 will automatically recall thatsetup every time the HVM100 is turned on.

If for some reason, the HVM100 needs to be reset to itsoriginal factory default settings, the user can erase all setupregisters (see chapter 3, Tools Menu). This will reset allsetups, including setup register S0, to their factory defaults.

Recalling a File

To recall a stored data file,

Step 1 Press the DATA or HISTORY key to enter the Data or History menu.

Step 2 Press the RECALL Key on the HVM100.

Step 3 The screen will prompt you to recall a file.

Recall File01


Step 4 Use the u and d arrow keys to move to the desired selection.

Step 5 Press the c key to recall the file into the current memory. All setup information was stored when the data file was stored. That setup information is recalled with the data file, and can be reviewed.

Recall FileWilson Proses 05

HVM100 Manual Recall Key 6-9

C H A P T E R

7 Taking Measurements/ Viewing Data on the HVM100

This chapter will describe how to take a measurement andview the data on the display of the HVM100.

Run/Stop Key

The Run/Stop key is used to start and stop the measurement.There are several screen indicators that will appear as thiskey is pressed.

Overload Detection

When an overload occurs on the HVM100 the meter willperform three functions for the overloaded channel.

Screen Symbol

Definition

Run Indicator. Also indicates the level of the input signal coming into the HVM100. The bar graph is drawn in approximately 5 dB steps.

? Under Range Indicator.

Stop Indicator. Indicates that the HVM is not running.

* Latching Overload Indicator.

! Run - Interrupted Indicator

HVM100 Manual 7-1

• The HVM100 indicates when an overload is currentlyoccurring on any of the three inputs. The HVM100flashes the following screen.

• The HVM100 uses an * to indicate that an overload hasoccurred since the last reset. The * is displayed on allchannels regardless of which channel was overloaded.The Amp value on the overload channel will display“OVER”

• Short Term values like Arms, Peak, Time History valuesetc. will be reported as OVER whenever an overload cor-rupts these values.

Under-Range Indicator (?)

The under-range indicator will replace the bar graph runindicator whenever the channel currently displayed is under-range. The under-range indicator, like the bar graph, is inde-pendent for all three channels. A channel is under rangewhenever the input rms signal level is below the minimumRMS Range level as specified in the Typical MeasurementRange tables in Appendix A. For example, with 0 dB gain, ifthe input rms level drops below 74 dBV (5 mV), the under-range indicator will be displayed

Run-Interrupted Indicator (!)

If the HVM100 is stopped and then run again without reset-ting the current data, the run-interrupted indicator (!) willreplace the colon (:) in all displays that show the run time.The “!” indicates that the data in the HVM100 is not contig-uous. In other words, the instrument was stopped one or

Over *Z FcX

Peak .00988 *Amp OVER FcZ

Peak OVERAmp OVER FcZ

7-2 Run/Stop Key HVM100 Manual

more times during the collection of the data. An example ofa data display with the “!” indicator is shown below.

History Key

NOTE: To view each selection, first pressthe c key, and then press the r lu or darrow key to scroll through each selec-tion.

The HVM100 will store a time history based on the sampletime selected. The Time History buffer has 240 entries avail-able for storage. If you select to store the Peak values as wellas the RMS values, the number of time history records is cutin half to 120.

NOTE: The 2nd History setting (locatedin the Setup menu), controls whether ornot the Peak levels are stored in the TimeHistory.

Example: You have selected an Averaging time of Slow. This Averaging timeselected is the one second exponential detector, and if the 2nd Historyselection in the Setup menu is set to none, you will be able to store for240 seconds. After 240 seconds the history will start erasing the datafrom the beginning of the Time History buffer to make room for theincoming data. If the 2nd History selection is set to Peak, then you willhave 120 seconds of storage time, and after that, the Time History buf-fer will begin to erase from the beginning to make room for the newdata.

Aeq 0!23!48 1.5000 m/s2 Fa2

HVM100 Manual History Key 7-3

The HISTORY key works much the same as the othermenus in the HVM100. To view the Time History data, pressthe HISTORY key.

You will now be presented with the history data from thefirst history record. The data is presented in the followingformat:

Arms 0:00:01.01900 m/s2 FaZ

This is the value being displayed. The choices are rms or Peak.

This is the run time for the currently displayed Time History record. This will always be a multiple of the Averaging Time.

Frequency Weighting

Display Units.

Measured value.

Channel

The first letter indicates the integration selected. A=acceleration

7-4 History Key HVM100 Manual

Use the u and d arrow keys to select additional historyrecords, and use the r and l arrow keys to select data fromthe different channels.

u

u

u

Viewing Time History with 2nd History turned on

If the 2nd history selection is turned on, the History bufferwill alternate between RMS and Peak values for each record.

u

u

Arms 0:00:04 .01900 m/s2 FaZ

Arms 0:00:03 .01900 m/s2 FaZ

Arms 0:00:02 .01900 m/s2 FaZ

Arms 0:00:01 .01900 m/s2 FaZ

Peak 0:00:02 4.3800 m/s2 FaZ

Arms 0:00:02 1.5000 m/s2 FaZ

Peak 0:00:01 4.3800 m/s2 FaZ

HVM100 Manual History Key 7-5

u

Data Key

NOTE: To view each selection, first pressthe c key, and then press the r lu or darrow key to scroll through each selec-tion.

The DATA key is used to view the overall data being gath-ered by the instrument. There are 8 screens available in thedata menu. To scroll through the menu, use the u and darrow keys. To view other channels use the r and l arrowkeys. The screens are formatted as follows.

Arms 0:00:01 1.5000 m/s2 FaZ

Data Presented Screen appearing on the HVM100

Top screen reports Time and Date. It will also report the last recalled setup, or data file name, which ever was more recent.

Process Batch 0319:34 03 Oct 99

2nd screen reports detector and averaging time on first line (A=acceleration) and RMS level, units, frequency weighting and channel on second line.

Arms 10 sec 3.5700 m/s2 FaZ

3rd screen reports minimum level on first line, and maximum level on second line. Frequency weighting and channel are also reported.

Amin .00000 Amax .01430 FaZ

4th screen reports Peak level on first line and the long term maximum peak level on the second line. Frequency weighting and channel are also reported.

Peak .04780Amp .09550 FaZ

5th screen reports the long term average that runs from run to reset and averaging time on first line. Value, units, frequency weighting and channel on the second line.

Aeq 0:00:01 031.5000 m/s2 FaZ

7-6 Data Key HVM100 Manual

:

Additional Data view screens for Hand Arm Mode

The 6th and 7th screens report the Energy Equivalent levels averaged over the run time. 1, 2, 4, and 8 refer to the run time in Hours. (A (8) is the Energy Equivalent level projected over 8 hours)

A(1) .00104 A(2) .00073 FaZ

The Frequency weighting and channel are also reported. A(4) .00052 A(8) .00036 FaZ

The 8th screen shows the Allowed Exposure Time based on the measured A(8) value and a criterion level of 2.8 m/s2.

A(8) Exposure

The 9th screen is the Points display for the Hand Arm Mode before taking a measurement. It will appear as shown to the right before taking a measurement. The display axis automatically switches to Sum (sigma). If the user scrolls back out of this display, the HVM100 remembers what the display axis was and restores it. The bar at the top right indicates that the meter is stopped.

PE 0:00:00 : (8):

While taking a measurement, the Points display for the Hand Arm Mode will appear as show to the right.The measurement time appears on the top line, the number of points accumulated during the test period is displayed on the lower left (2 in this example) and the 8-hour equivalent is displayed on the lower right as indicated by the (8). Both fields are limited to four characters. The black rectangle indicates that the measurement is in progress.

PE 0:00:53 : 2(8): 878

I

I

I

HVM100 Manual Data Key 7-7

When the measurement is finished, the Points display for the Hand Arm Mode will appear as show to the right. The bar symbol in the upper right changes to the standard “stopped” symbol.

PE 0:01:00 : 2(8): 878

Note that both the points accumulated during the test and the 8-hour equivalents are limited to 4 characters. To prevent erroneous data from being displayed (i.e. 20456 appearing as 0456), the value will never be allowed to exceed 9999. The saturation condition is indicated by the colon changing to a greater-than symbol as shown to the right.

PE 0:01:00 : 2(8):>9999

Additional Data view screens for Hand Arm Mode

Additional Data view screens for Whole Body Mode

The 1st screen is the Points display for the Whole Body Mode before taking a measurement. It will appear as shown to the right before taking a measurement. The display axis automatically switches to Sum (sigma). If the user scrolls back out of this display, the HVM100 remembers what the display axis was and restores it. The bar at the top right indicates that the meter is stopped.

PE 0:00:00 : (8):

While taking a measurement, the Points display for the Whole Body Mode will appear as show to the right.The measurement time appears on the top line, the number of points accumulated during the test period is displayed on the lower left (2 in this example) and the 8-hour equivalent is displayed on the lower right as indicated by the (8). Both fields are limited to four characters. The black rectangle indicates that the measurement is in progress.

PE 0:00:53 : 2(8): 878

When the measurement is finished, the Points display for the Whole Body Mode will appear as show to the right. The bar symbol in the upper right changes to the standard “stopped” symbol.

PE 0:01:00 : 2(8): 878

I

I

I

I

I


NOTE: The vibration dose value (VDV),specified by ISO 8041:2005 and calcu-lated by the HVM100, has units of m/s7/4.The HVM100 is also capable of display-ing VDV in cm/s7/4, ft/s7/4, or in/s7/4 (usingthe Display Units parameter). However,if Display Units are set to "g" or "dB",the VDV becomes an undefined quantity.Therefore, if the display units are "g" or"dB", the HVM100 will display a seriesof dashes (------) for the value.

Please see the specifications appendix for further informa-tion regarding specifics of all measured values.

NOTE: The Short-Term Crest factor(CF) is not calculated if the AveragingTime setting is SLOW

Note that both the points accumulated during the test and the 8-hour equivalents are limited to 4 characters. To prevent erroneous data from being displayed (i.e. 20456 appearing as 0456), the value will never be allowed to exceed 9999. The saturation condition is indicated by the colon changing to a greater-than symbol as shown to the right.

PE 0:01:00 : 2(8):>9999

The Vibration Dose Value and run time are displayed on the first line. The value, units, frequency weighting, and channel are displayed on the second line.

VDV 0:00:00 2.9700 m/s7/4 WbZ

Short Term Crest Factor is shown on the first line, the Long Term Crest factor is reported on the second line. The Frequency weighting and channel are also reported.

CF 20.3dB CFmp 21.0dB WbZ

Additional Data view screens for Whole Body Mode

I

HVM100 Manual Data Key 7-9

C H A P T E R

8 Powering the HVM100

Batteries

The HVM100 operates on 2 AA batteries. See Appendix Afor information on typical battery life.

Checking the Remaining Battery Voltage

The battery voltage can be viewed from the data menu bypressing the c key. The following screen will be displayed.

When the batteries have approximately five minutes of liferemaining, the HVM100 will begin flashing a letter ‘B’ inthe upper right corner of the display.

Installing New Batteries

To install new batteries in the HVM100,

Step 1 Remove battery cover from the side of the case.

Battery 1.1VExternal 12.2V

HVM100 Manual Powering the HVM100 8-1

Step 2 Remove old batteries.

Step 3 Arrange new batteries according to diagram on the inside of the case. Make sure polarity of the batter-ies is correct.

8-2 Installing New Batteries HVM100 Manual

Step 4 Gently push the new batteries in the case while pushing the battery cover over the battery opening.

HVM100 Manual Installing New Batteries 8-3

Using External Power

The HVM100 can also operate on 7 to 30 Volts DC externalpower. The external power connector is on the top of theHVM100.

The power supply normally used with the HVM100 is theLarson Davis PSA027. This is a switching power supply thatwill operate on 90 to 260 Volts AC, returning 12 Volts DC.


8-4 Using External Power HVM100 Manual

The connector pinout is as follows:

Negative (-)Positive (+)

Positive (+)

Negative (-)

HVM100 Manual Using External Power 8-5

8-6 Using External Power HVM100 Manual

C H A P T E R

9 Connections on the HVM100

There are 4 connectors located on the outside case of theHVM100. The Serial Port, input connector, external powerconnector, and AD/DC Output connector.


Top connectors on HVM100.

AC/DC Output Connector

Bottom connectors on HVM100

HVM100 Manual Connections on the HVM100 9-1

Serial Interface Port

The serial port is used for communicating with theHVM100. The serial port also provides the printerconnection.

Pinout

The pinout is as follows,

8

45

6

2

3

1

7

Pin Num-ber

Description

1 - RTS Request To Send

2 - CTS Clear To Send

3 - TXD Transmit Data

4 - Ground Signal Ground

5 - RXD Receive Data

6 - Ground Signal Ground

7 - N/C No Connection

9-2 Serial Interface Port HVM100 Manual

Cables Used

The standard cable used with the HVM100, is the CBL006.This is a serial connection cable and can be used whencommunicating through software or printing to aHyperterminal connection.

8 - N/C No Connection

The shell of the connector is connected to the Case Shield Ground

Pin Num-ber

Description

HVM100 Manual Serial Interface Port 9-3

Transducer Connection

The transducer connection is the input connection into theHVM100. It is located on the top of the HVM100 case. Theconnector used is a standard 4-pin LEMO™ connector.

Pinout

The pinout is a follows,

3

41

2

Pin # Description

1 Z - Axis input

2 Y - Axis input

3 X - Axis input

4 Ground

9-4 Transducer Connection HVM100 Manual

External Power Connection

The HVM100 can also operate on 7 to 30 Volts DC externalpower. The external power connector is on the top of theHVM100.

Pinout

The connector pinout is as follows:

Larson Davis Adapter

The power supply normally used with the HVM100 is theLarson Davis PSA027. This is a switching power supply thatwill operate on 90 to 260 Volts AC, returning 12 Volts DC.

Negative (-)Positive (+)

Positive (+)

Negative (-)

HVM100 Manual External Power Connection 9-5

AC/DC Output Connector

AC output is useful for frequency analysis by an externalanalyzer or for recording in a tape recorder. The DC outputis useful for a chart recorder, or to measure the voltageproportional to the RMS or peak value.

The DC output is updated according to the averaging time. Ifthe averaging time is set to slow, the signal on the DC outputpin for the selected channel will be updated once per second.If the averaging time is set to 60 seconds, the signal on theDC output pin for the selected channel will be updated onceevery 60 seconds.

The AC output will produce a signal from 0 - 0.5 Volt RMS.

The scale of the DC output is typically 5 mV/dB. The leveltypically varies between 0 Vdc to +1.0 Vdc.

Example: Chart recorder output, monitoring theDC output, with an averaging time of 60 seconds.

9-6 External Power Connection HVM100 Manual

Pinout

The AC/DC output connector is a 5 pin switchcraftconnector located on the bottom edge of the instrument. Thepinout is as follows:

The signal that is output on each pin is selectable for eachchannel. The selections are the same for each channel. Wewill list the X channel selections, however the availableselections will be the same for all operating modes as well.

3

4 1

2

5

Pin # Description

1 Ground

2 X - Axis AC/DC Output

3 Y - Axis AC/DC Output

4 No Connection

5 Z - Axis AC/DC Output

HVM100 Manual External Power Connection 9-7

9-8 External Power Connection HVM100 Manual

C H A P T E R

10 Adaptor Resonances

In this chapter are presented frequency response functiondata for adaptors ADP080A, ADP081A and ADP082A asrequired by ISO 8041:2005

Conclusion

Experimental measurements indicate no resonances withinthe Wh frequency range for the adaptors ADP080A,ADP081A and ADP082A.

Mechanical

Specification Unit ADP080A ADP081A ADP082A

Total Mass of Vibration Sensor & Mount-ing System(including sensor, adapter, & mounting screw)

ounces (grams)

0.67 (19) 0.74 (21) 0.35 (10)

Mounting Height of Vibration Sensor(distance between sensor and mounting surface)

inches (mm)

0.32 (8.0) 0.18 (4.6) 0.32 (8.1)

Adapter dimensions inches (mm)

Shown Below

Shown Below

Shown Below

HVM100 Manual 10-1

ADP080A(Hand Adapter with SEN04XFAccelerometer)

ADP081A(Handle Adapter with SEN04XFAccelerometer)

ADP082A(Clamp Adapter with SEN04XFAccelerometer)

10-2 Conclusion HVM100 Manual

Measurements

Frequency Response

The frequency response measurements were performed bysuspending the test object and exciting it with a modalhammer. The responses were measured in x, y and zdirections using a triaxial accelerometer connected to thetest object using the specified adapter. A graphic is includedto illustrate the test configuration.

Triaxial Accelerometer The triaxial accelerometer used for these tests was a LarsonDavis Model SEN041F having a sensitivity of 10 mV/g.

ADP080A + SEN041

HVM100 Manual Measurements 10-3

Frequency Response Function X, Y and Z

10-4 Measurements HVM100 Manual

ADP081A + SEN041


HVM100 Manual Measurements 10-5

ADP082A + SEN041


10-6 Measurements HVM100 Manual

A P P E N D I X

A Specifications

Specifications are subject to change without notice.Numerical values given are typical. Refer to specificcalibration or test results for accurate data on a specific unit.

General Characteristics

Type Precision The Larson Davis HVM100 Human Vibration Meter is aType 1 instrument designed for use in assessing vibration asperceived by human beings. The instrument meets therequirements of ISO 8041:2005(E) including Amendment 1:1999(E).

Additionally, the current ISO 8041:2005 standard, and

therefore the HVM100, is compatible with the standards

listed below. These standards define methods for the

measurement of whole-body and hand-arm vibration.

ISO 2631-1:1997 Mechanical vibration and shock --

Evaluation of human exposure to whole-body vibration --

Part 1: General requirements

ISO 2631-2:2003 Evaluation of human exposure to whole-

body vibration -- Part 2: Continuous and shock-induced

vibrations in buildings (1 to 80 Hz)

ISO 2631-4:2001 Mechanical vibration and shock --

Evaluation of human exposure to whole-body vibration --

Part 4: Guidelines for the evaluation of the effects of

HVM100 Manual Specifications A-1

vibration and rotational motion on passenger and crew

comfort in fixed-guideway transport systems

ISO 5349-1:2001 Mechanical vibration -- Measurement and

evaluation of human exposure to hand-transmitted vibration

-- Part 1: General requirements

ISO 5349-2:2001 Mechanical vibration -- Measurement and

evaluation of human exposure to hand-transmitted vibration

-- Part 2: Practical guidance for measurement at the

workplace

Effects of Temperature The RMS level varies 0.5 dB when the completeinstrument is tested over the - 10° C to 50° C temperaturerange. The reference reading, for this test, is taken at 20° Cand 36% relative humidity (RH); the input signal is at 79.6Hz.

Effects of Humidity The RMS level varies 0.5 dB when the completeinstrument is tested over the 30% to 90% RH range. Thistest is performed at 40° C, with an input signal of 79.6 Hz.

Limits of Temperature and Humidity

Permanent damage can occur when stored or operated above60° C or below -20° C. Condensation of moisture will makereadings inaccurate. When condensation dissipates, readingsshould return to normal.

Effects of Magnetic Fields The RMS level varies 0.5 dB when the completeinstrument is tested in an 80 A/m, 60 Hz magnetic field(worst case orientation).

Effects of Mechanical Vibrations

The instrument meets the specifications for susceptibility tovibration in accordance with ISO 8041:2005(E) section 7.1.

Stabilization Time At power-on, allow the instrument to stabilize,approximately 20 seconds, prior to performing anymeasurements. When changing from one type of input(Direct/Charge/ICP®) to another or when changing theinstruments gain settings, allow 10 seconds of stabilizationtime prior to performing a new measurement.

A-2 General Characteristics HVM100 Manual

Data Storage • 1/2 Mega Byte Memory

• Capable of storing 100 files and 10 setups

• 2 minute (typical) data retention for clock during batterychange

Data Communications • RS-232 Serial Interface

• Maximum Data Rate: 115,000 bits per second

Digital Display • 2 line, 32 digit, 7 segment LCD display

• Full ASCII character set

• 0.1 dB resolution

Real-time Clock/Calendar • Accuracy: 0.02% (-10° C to 50° C)

• 24 hour clock: hh:mm

Run-time Clock • One second resolution

• Format: hh:mm:ss

• Maximum run time: 99:59:59

Power Supply • 2 AA (1.5V) alkaline batteries

• Typically operates for 12 hours (Charge/Direct modes)

• Battery life is reduced to approximately 4 hours whenusing ICP® accelerometers.

• External Power: 7-30 volts DC

Dimensions/Weight • Width: 3.25 inches (8.3 cm)

• Length: 6.0 inches (15.2 cm)

• Depth: 1.0 inches (2.5 cm)

• Weight: 9.8 ounces (279 grams) - including batteries

HVM100 Manual General Characteristics A-3

Declaration of Conformity

PCB Piezotroncs Inc. declares that:

• Product Name: Human Vibration Meter

• Model: HVM100

The Model HVM100 Human Vibration Meter complies withthe European Community EMC Directive (2004/108/EC)and also with the Low Voltage Safety Directive (2006/95/EC) by meeting the following standards:

• IEC 61326-1:2005-Electrical equipment for measurement, control and laboratory use-EMC requirements-Part 1: General requirements.

•IEC 61000-4-2:2008-Electrostatic discharge immunitytest ±4kV contact ESD and ±8kV air ESD). PerformanceCriteria B.

•IEC61000-4-3:2006 with am1 2007-Radiated, radio-frequency electromagnetic field immunity test. 26 to1,000 MHz at 10 V/m, 1.4 to 2.0 GHz at 3 V/M, and 2.0to 2.7 GHz at 1 V/M, all with AM 80%, 1 kHz. ±6%from 1 g. Performance Criteria A.

•IEC61000-4-8:2009: Power frequency magnetic fieldimmunity test. 80 A/m, 50/60 Hz. 3% from 1 g.Performance Criteria A.

•CISPR 11:2009-Industrial, scientific and medicalequipment-Radio-frequency disturbance characteristics-Limits and methods of measurement. Class B, Group 1.

• IEC 61010-1:2001- Safety requirements for electricalequipment for measurement, control, and laboratory use-Part 1:General requirements.

This device complies with Part 15 of the FCC Rules.Operation is subject to the following two conditions:

(1) This device may not cause harmful interference


(2) This device must accept any interference received,including interference that my cause undesiredoperation.

Outputs

The output impedance is 475 ohms for all of the Analog ACand Analog DC outputs. For minimal error, use instrumentwith a greater than 100,000 ohm input impedance whenmaking AC or DC output measurements.

Transducer Electrical Impedance

During electrical testing, the following circuits were used inplace of the transducer.

Direct Input

ICP® Input

50Signal Generator

Ground

X

Y

Z

50Signal Generator

Ground

1.65 k

3300µF

X

Y

Z


Charge Input

Functions Measured

Reference Acceleration

The reference acceleration (for displaying data in dB) is 10-6

m/s2. the user can also select a reference of 10-5 m/s2 (seesection 4-3 of the manual for an explanation of how to selectthe reference acceleration.)

50Signal Generator

Ground

X

Y

Z

1000pF

1000pF

1000pF

Mode Data Buffer Measurements Time History Buffer Measurements

Vibration Arms, Amin, Amax, Amp, Peak, Aeq, PE

Arms with optional Peak

Hand Arm Arms, Amin, Amax, Amp, Peak, Aeq, A(1), A(2), A(4), A(8), A(8) Exposure, PE


Whole Body Arms, Amin, Amax, Amp, Peak, Aeq, CFmp, CF, VDV,PE



Reference Calibration Frequency

Reference Calibration Vibration

The reference calibration vibration is 1 m/s2

Operating Mode Frequency Weighting Reference Calibration Frequency

Vibration Fa (0.4 Hz to 100 Hz)

Ws (Severity)Fb (0.4 Hz to 1250 Hz)Fc (6.3 Hz to 1250 Hz)

7.96 Hz

79.6 Hz

Hand Arm Wh 79.6 Hz

Whole Body WmWbWcWdWeWgWjWk

7.96 Hz


Frequency Weighting Curves

Fa (Flat 0.4 Hz to 100 Hz)

Freq ( Hz) Nominal

Freq ( Hz)True

Fa dB Tolerance dB

0.100 0.1000 -24.10 +2/-

0.125 0.1259 -20.12 +2/ -

0.160 0.1585 -16.19 +2/ -

0.200 0.1995 -12.34 +2/-

0.250 0.2512 -8.71 +2/-2

0.315 0.3162 -5.51 +2/-2

0.400 0.3981 -3.05 +1/-1

0.500 0.5012 -1.48 +1/-1

0.630 0.6310 -0.65 +1/-1

0.800 0.7943 -0.27 +1/-1

1.00 1.000 -0.11 +1/-1

1.25 1.259 -0.04 +1/-1

1.60 1.585 -0.02 +1/-1

2.00 1.995 -0.01 +1/-1

2.50 2.512 0.00 +1/-1

3.15 3.162 0.00 +1/-1

4.00 3.981 0.00 +1/-1

5.00 5.012 0.00 +1/-1

6.30 6.310 0.00 +1/-1

8.00 7.943 0.00 0

10.0 10.00 0.00 +1/-1

12.5 12.59 0.00 +1/-1

A-8 Frequency Weighting Curves HVM100 Manual

Fb (Flat 0.4 Hz to 1260 Hz) Frequency Weighting

16.0 15.85 0.00 +1/-1

20.0 19.95 -0.01 +1/-1

25.0 25.12 -0.02 +1/-1

31.5 31.62 -0.04 +1/-1

40.0 39.81 -0.11 +1/-1

50.0 50.12 -0.27 +1/-1

63.0 63.10 -0.64 +1/-1

80.0 79.43 -1.46 +1/-1

100 100.0 -3.01 +1/-1

125 125.9 -5.46 +2/-2

160 158.5 -8.64 +2/-2

200 199.5 -12.27 +2/ -

250 251.2 -16.11 +2/ -

315 316.2 -20.04 +2/ -

400 398.1 -24.02 +2/ -

Freq ( Hz) Nominal

Freq ( Hz)True

Fa dB Tolerance dB

Freq ( Hz)Nominal

Freq ( Hz)True

Fb dB Tolerance dB

0.100 0.1000 -24.10 +2 / -

0.125 0.1259 -20.12 +2 / -

0.160 0.1585 -16.19 +2 / -

0.200 0.1995 -12.34 +2 / -

0.250 0.2512 -8.71 +2 / -2

0.315 0.3162 -5.51 +1 / -1

HVM100 Manual Frequency Weighting Curves A-9

0.400 0.3981 -3.05 +1 / -1

0.500 0.5012 -1.48 +1 / -1

0.630 0.6310 -0.65 +1 / -1

0.800 0.7943 -0.27 +1 / -1

1.00 1.000 -0.11 +1 / -1

1.25 1.259 -0.04 +1 / -1

1.60 1.585 -0.02 +1 / -1

2.00 1.995 -0.01 +1 / -1

2.50 2.512 0.00 +1 / -1

3.15 3.162 0.00 +1 / -1

4.00 3.981 0.00 +1 / -1

5.00 5.012 0.00 +1 / -1

6.30 6.310 0.00 +1 / -1

8.00 7.943 0.00 +1 / -1

10.0 10.00 0.00 +1 / -1

12.5 12.59 0.00 +1 / -1

16.0 15.85 0.00 +1 / -1

20.0 19.95 0.00 +1 / -1

25.0 25.12 0.00 +1 / -1

31.5 31.62 0.00 +1 / -1

40.0 39.81 0.00 +1 / -1

50.0 50.12 0.00 +1 / -1

63.0 63.10 0.00 +1 / -1

80.0 79.43 0.00 0

100 100.0 0.00 +1 / -1

Freq ( Hz)Nominal

Freq ( Hz)True

Fb dB Tolerance dB


125 125.9 0.00 +1 / -1

160 158.5 0.00 +1 / -1

200 199.5 0.00 +1 / -1

250 251.2 -0.01 +1 / -1

315 316.2 -0.02 +1 / -1

400 398.1 -0.04 +1 / -1

500 501.2 -0.11 +1 / -1

630 631.0 -0.27 +1 / -1

800 794.3 -0.64 +1 / -1

1000 1000 -1.46 +2 / -2

1250 1259 -3.01 +2 / -2

1600 1585 -5.46 +2 / -2

2000 1995 -8.64 +2 / -2

2500 2512 -12.27 +2 / -

3150 3162 -16.11 +2 / -

4000 3981 -20.04 +2 / -

5000 5012 -24.02 +2 / -

6300 6310 -28.01 +2 / -

8000 7943 -32.00 +2 / -

10000 10000 -36.00 +2 / -

Freq ( Hz)Nominal

Freq ( Hz)True

Fb dB Tolerance dB


Fc (Flat 6.3 Hz to 1260 Hz), Wh, and Ws Frequency Weighting.

Freq ( Hz)Nominal

Freq ( Hz)True

Fc dB Wh dB Tolerance dB

Ws dB Tolerance dB

0.800 0.7943 -36.00 -36.00 +2 / - -76.00 +4 / -

1.00 1.000 -32.00 -31.99 +2 / - -68.00 +4 / -

1.25 1.259 -28.01 -27.99 +2 / - -60.00 +4 / -

1.60 1.585 -24.02 -23.99 +2 / - -52.00 +4 / -

2.00 1.995 -20.04 -20.01 +2 / - -44.00 +4 / -

2.50 2.512 -16.11 -16.05 +2 / - -36.00 +4 / -4

3.15 3.162 -12.27 -12.18 +2 / - -28.00 +4 / -4

4.00 3.981 -8.64 -8.51 +2 / -2 -19.90 +4 / -4

5.00 5.012 -5.46 -5.27 +2 / -2 -12.20 +4 / -4

6.30 6.310 -3.01 -2.77 +2 / -2 -5.30 +4 / -4

8.00 7.943 -1.46 -1.18 +2 / -2 -1.50 +4 / -4

10.0 10.00 -0.64 -0.43 +1 / -1 0.00 +1 / -2

12.5 12.59 -.027 -0.38 +1 / -1 0.00 +1 / -2

16.0 15.85 -0.11 -0.96 +1 / -1 0.00 +1 / -2

20.0 19.95 -0.04 -2.14 +1 / -1 0.00 +1 / -1

25.0 25.12 -0.02 -3.78 +1 / -1 0.00 +1 / -1

31.5 31.62 -0.01 -5.69 +1 / -1 0.00 +1 / -1

40.0 39.81 0.00 -7.72 +1 / -1 0.00 +1 / -1

50.0 50.12 0.00 -9.78 +1 / -1 0.00 +1 / -1

63.0 63.10 0.00 -11.83 +1 / -1 0.00 +1 / -1

80.0 79.43 0.00 -13.88 0 0.00 0

100 100.0 0.00 -15.91 +1 / -1 0.00 +1 / -1

125 125.9 0.00 -17.93 +1 / -1 0.00 +1 / -1


Wb, Wc, and Wd Frequency Weightings

160 158.5 0.00 -19.94 +1 / -1 0.00 +1 / -1

200 199.5 0.00 -21.95 +1 / -1 0.00 +1 / -1

250 251.2 -0.01 -23.96 +1 / -1 0.00 +1 / -1

315 316.2 -0.02 -25.98 +1 / -1 0.00 +1 / -1

400 398.1 -0.04 -28.00 +1 / -1 0.00 +1 / -1

500 501.2 -0.11 -30.07 +1 / -1 0.00 +1 / -1

630 631.0 -0.27 -32.23 +1 / -1 0.00 +1 / -2

800 794.3 -0.64 -34.60 +1 / -1 0.00 +1 / -2

1000 1000 -1.46 -37.42 +2 / -2 0.00 +1 / -2

1250 1259 -3.01 -40.97 +2 / -2 -1.70 +4 / -4

1600 1585 -5.46 -45.42 +2 / -2 -4.30 +4 / -4

2000 1995 -8.64 -50.60 +2 / -2 -9.80 +4 / -4

2500 2512 -12.27 -56.23 +2 / - -16.30 +4 / -4

3150 3162 -16.11 -62.07 +2 / - -25.80 +4 / -4

4000 3981 -20.04 -68.01 +2 / - -36.00 +4 / -4

5000 5012 -24.02 -73.98 +2 / - -44.00 +4 / -

6300 6310 -28.01 -79.97 +2 / - -52.00 +4 / -

8000 7943 -32.00 -85.97 +2 / - -60.00 +4 / -

10000 10000 -36.00 -91.97 +2 / - -68.00 +4 / -

Freq ( Hz)Nominal

Freq ( Hz)True

Fc dB Wh dB Tolerance dB

Ws dB Tolerance dB

Freq ( Hz)Nominal

Freq ( Hz)True

Wb dB Wc dB Wd dB Tolerance dB

0.100 0.100 -32.04 -24.10 -24.09 +2 / -

0.125 0.1259 -28.20 -20.12 -20.12 +2 / -


0.160 0.1585 -23.98 -16.19 -16.18 +2 / -

0.200 0.1995 -20.23 -12.34 -12.32 +2 / -

0.250 0.2512 -16.71 -8.71 -8.68 +2 / -2

0.315 0.3162 -13.51 -5.51 -5.47 +2 / -2

0.400 0.3981 -10.98 -3.05 -2.98 +1 / -1

0.500 0.5012 -9.53 -1.47 -1.37 +1 / -1

0.630 0.6310 -8.71 -0.64 -0.50 +1 / -1

0.800 0.7943 -8.38 -0.25 -0.08 +1 / -1

1.00 1.00 -8.29 -0.08 +0.10 +1 / -1

1.25 1.259 -8.27 +0.00 +0.06 +1 / -1

1.60 1.585 -8.07 +0.06 -0.26 +1 / -1

2.00 1.995 -7.60 +0.10 -1.00 +1 / -1

2.50 2.512 -6.13 +0.15 -2.23 +1 / -1

3.15 3.162 -3.58 +0.19 -3.88 +1 / -1

4.00 3.981 -1.02 +0.21 -5.78 +1 / -1

5.00 5.012 0.21 +0.11 -7.78 +1 / -1

6.30 6.310 0.46 -0.23 -9.83 +1 / -1

8.00 7.943 0.21 -0.97 -11.87 0

10.0 10.0 -0.23 -2.20 -13.91 +1 / -1

12.5 12.59 -0.85 -3.84 -15.93 +1 / -1

16.0 15.85 -1.83 -5.74 -17.95 +1 / -1

20.0 19.95 -3.00 -7.75 -19.97 +1 / -1

25.0 25.12 -4.44 -9.80 -21.98 +1 / -1

31.5 31.62 -6.16 -11.87 -24.01 +1 / -1

40.0 39.81 -8.11 -13.97 -26.08 +1 / -1

Freq ( Hz)Nominal

Freq ( Hz)True



We, Wj, and Wk Frequency Weighting

50.0 50.12 -10.09 -16.15 -28.24 +1 / -1

63.0 63.10 -12.43 -18.55 -30.62 +1 / -1

80.0 79.43 -15.34 -21.37 -33.43 +1 / -1

100 100.0 -18.72 -24.94 -36.99 +1 / -1

125 125.9 -23.00 -29.39 -41.43 +2 / -2

160 158.5 -28.56 -34.57 -46.62 +2 / -2

200 199.5 -34.03 -40.20 -52.24 +2 / -

250 251.2 -39.69 -46.04 -58.09 +2 / -

315 316.2 -45.65 -51.98 -64.02 +2 / -

400 398.1 -51.84 -57.95 -70.00 +2 / -

Freq ( Hz)Nominal

Freq ( Hz)True


Freq ( Hz)Nominal

Freq ( Hz)True

We dB Wj dB Wk dB Tolerance dB

0.100 0.100 -24.08 -30.18 -30.11 +2 / -

0.125 0.1259 -20.09 -26.20 -26.14 +2 / -

0.160 0.1585 -16.14 -22.27 -22.21 +2 / -

0.200 0.1995 -12.27 -18.42 -18.37 +2 / -

0.250 0.2512 -8.60 -14.79 -14.74 +2 / -2

0.315 0.3162 -5.36 -11.60 -11.55 +2 / -2

0.400 0.3981 -2.86 -9.15 -9.11 +1 / -1

0.500 0.5012 -1.27 -7.58 -7.56 +1 / -1

0.630 0.6310 -0.55 -6.77 -6.77 +1 / -1

0.800 0.7943 -0.52 -6.42 -6.44 +1 / -1

1.00 1.00 -1.11 -6.30 -6.33 +1 / -1

1.25 1.259 -2.29 -6.28 -6.29 +1 / -1


1.60 1.585 -3.91 -6.32 -6.13 +1 / -1

2.00 1.995 -5.80 -6.34 -5.50 +1 / -1

2.50 2.512 -7.81 -6.22 -3.97 +1 / -1

3.15 3.162 -9.85 -5.60 -1.86 +1 / -1

4.00 3.981 -11.89 -4.08 -0.31 +1 / -1

5.00 5.012 -13.93 -1.99 +0.33 +1 / -1

6.30 6.310 -15.95 -0.47 +0.46 +1 / -1

8.00 7.943 -17.97 +0.14 +0.32 0

10.0 10.0 -19.98 +0.26 -0.10 +1 / -1

12.5 12.59 -21.99 +0.22 -0.93 +1 / -1

16.0 15.85 -23.99 +0.16 -2.22 +1 / -1

20.0 19.95 -26.00 +0.10 -3.91 +1 / -1

25.0 25.12 -28.01 +0.06 -5.84 +1 / -1

31.5 31.62 -30.04 +0.00 -7.89 +1 / -1

40.0 39.81 -32.11 -0.08 -10.01 +1 / -1

50.0 50.12 -34.26 -0.25 -12.21 +1 / -1

63.0 63.10 -36.64 -0.63 -14.62 +1 / -1

80.0 79.43 -39.46 -1.45 -17.47 +1 / -1

100 100.0 -43.01 -3.01 -21.04 +1 / -1

125 125.9 -47.46 -5.45 -25.50 +2 / -2

160 158.5 -52.64 -8.64 -30.69 +2 / -2

200 199.5 -58.27 -12.26 -36.32 +2 / -

250 251.2 -64.11 -16.11 -42.16 +2 / -

315 316.2 -70.04 -20.04 -48.10 +2 / -

400 398.1 -76.02 -24.02 -54.08 +2 / -

Freq ( Hz)Nominal

Freq ( Hz)True

We dB Wj dB Wk dB Tolerance dB


Wg Frequency Weighting (Defined in BS6841:1987)

Freq ( Hz)Nominal

Freq ( Hz)True

Wg dB TolerancedB

1.00 1.00 -7.5 +1 / -1

1.25 1.26 -6.0 +1 / -1

1.60 1.59 -4.6 +1 / -1

2.00 2.00 -3.4 +1 / -1

2.50 2.51 -2.2 +1 / -1

3.15 3.16 -0.9 +1 / -1

4.00 3.98 -0.0 +1 / -1

5.00 5.01 +0.4 +1 / -1

6.30 6.31 +0.1 +1 / -1

8.00 7.94 -1.0 0

10.0 10.00 -2.5 +1 / -1

12.5 12.59 -4.2 +1 / -1

16.0 15.85 -6.3 +1 / -1

20.0 19.95 -8.2 +1 / -1

25.0 25.12 -10.1 +1 / -1

31.5 31.62 -12.1 +1 / -1

40.0 39.81 -14.2 +1 / -1

50.0 50.12 -16.3 +1 / -1

63.0 63.10 -18.7 +1 / -1

80.0 79.43 -21.6 +1 / -1


Wm (Whole Body) Frequency Weighting

Freq ( Hz)Nominal

Freq ( Hz)True

WB dB TolerancedB

0.100 0.100 -36.00 +2 / -

0.125 0.1259 -32.00 +2 / -

0.160 0.1585 -28.01 +2 / -

0.200 0.1995 -24.02 +2 / -

0.250 0.2512 -20.05 +2 / -

0.315 0.3162 -16.12 +2 / -

0.400 0.3981 -12.29 +2 / -

0.500 0.5012 -8.67 +2 / -2

0.630 0.6310 -5.51 +2 / -2

0.800 0.7943 -3.09 +2 / -2

1.00 1.00 -1.59 +2 / -2

1.25 1.259 -0.85 +1 / -1

1.60 1.585 -0.59 +1 / -1

2.00 1.995 -0.61 +1 / -1

2.50 2.512 -0.82 +1 / -1

3.15 3.162 -1.19 +1 / -1

4.00 3.981 -1.74 +1 / -1

5.00 5.012 -2.50 +1 / -1

6.30 6.310 -3.49 +1 / -1

8.00 7.943 -4.70 0

10.0 10.0 -6.12 +1 / -1

12.5 12.59 -7.71 +1 / -1

16.0 15.85 -9.44 +1 / -1


20.0 19.95 -11.25 +1 / -1

25.0 25.12 -13.14 +1 / -1

31.5 31.62 -15.09 +1 / -1

40.0 39.81 -17.10 +1 / -1

50.0 50.12 -19.23 +1 / -1

63.0 63.10 -21.58 +1 / -1

80.0 79.43 -24.38 +2 / -2

100 100.0 -27.93 +2 / -2

125 125.9 -32.37 +2 / -2

160 158.5 -37.55 +2 / -2

200 199.5 -43.18 +2 / -

250 251.2 -49.02 +2 / -

315 316.2 -54.95 +2 / -

400 398.1 -60.92 +2 / -

500 501.2 -66.91 +2 / -

630 631.0 -72.91 +2 / -

800 794.3 -78.91 +2 / -

Freq ( Hz)Nominal

Freq ( Hz)True

WB dB TolerancedB


Typical Measurements Ranges

Vibration - Fa

Notes:

1. Under-Range (?) - The noise floor is below themeasurement range of the analog to digital converter.

2. The data in the above table was obtained by electricallytesting the HVM100.

Direct Charge (1000pF) ICP®

Gain Noise Floor dBµV

RMS Range dBµV

Peak Range dBµV

Noise Floor dBµV

RMS Range dBµV

Peak Range dBµV

Noise Floor dBµV

RMS Range dBµV

Peak Range dBµV

0 dB See Note 1

60 dB74-134

38 dB99-137

See Note 1

60 dB74-134

38 dB99-137

See Note 1

60 dB74-134

38 dB99-137

20 dB See Note 1

60 dB54-114

38 dB79-117

See Note 1

60 dB54-114

38 dB79-117

See Note 1

60 dB54-114

38 dB79-17

40 dB 26 58 dB36-94

36 dB61-97

26 58 dB36-94

36 dB61-97

26 58 dB36-94

36 dB61-97

60 dB 17 47 dB27-74

25 dB52-77

17 47 dB27-74

25 dB52-77

23 41 dB33-74

19 dB58-77


Vibration - Fb, Fc, Ws

Notes




RMS Range dBµV

Peak Range dBµV

Noise Floor dBµV

RMS Range dBµV

Peak Range dBµV

Noise Floor dBµV

RMS Range dBµV

Peak Range dBµV

0 dB 64 60 dB74-134

38 dB99-137

64 60 dB74-134

38 dB99-137

64 60 dB74-134

38 dB99-137

20 dB 44 60 dB54-114

38 dB79-117

44 60 dB54-114

38 dB79-117

44 60 dB54-114

38 dB79-117

40 dB 30 54 dB40-94

32 dB65-97

30 54 dB40-94

32 dB65-97

30 54 dB40-94

32 dB65-97

60 dB 23 41 dB33-74

19 dB58-77

23 41 dB33-74

19 dB58-77

23 41 dB33-74

19 dB58-77


Hand Arm - Wh

Notes:





RMS Range dBµV

Peak Range dBµV

Noise Floor dBµV

RMS Range dBµV

Peak Range dBµV

Noise Floor dBµV

RMS Range dBµV

Peak Range dBµV

0 dB See Note 1

60 dB74-134

38 dB99-137

See Note 1

60 dB74-134

38 dB99-137

See Note 1

60 dB74-134

38 dB99-137

20 dB See Note 1

60 dB54-114

38 dB79-117

See Note 1

60 dB54-114

38 dB79-117

See Note 1

60 dB54-114

38 dB79-117

40 dB See Note 1

60 dB34-94

38 dB59-97

See Note 1

60 dB34-94

38 dB59-97

See Note 1

60 dB34-94

38 dB59-97

60 dB 10 54 dB20-74

32 dB45-77

10 54 dB20-74

32 dB45-77

10 54 dB20-74

32 dB45-77


Whole Body - Wm

Notes:





RMS Range dBµV

Peak Range dBµV

Noise Floor dBµV

RMS Range dBµV

Peak Range dBµV

Noise Floor dBµV

RMS Range dBµV

Peak Range dBµV

0 dB See Note 1

60 dB74-134

38 dB99-137

See Note 1

60 dB74-134

38 dB99-137

See Note 1

60 dB74-134

38 dB99-137

20 dB See Note 1

60 dB54-114

38 dB79-117

See Note 1

60 dB54-114

38 dB79-117

See Note 1

60 dB54-114

38 dB79-117

40 dB See Note 1

60 dB34-94

38 dB59-97

See Note 1

60 dB34-94

38 dB59-97

See Note 1

60 dB34-94

38 dB59-97

60 dB 14 50 dB24-74

28 dB49-77

14 50 dB24-74

28 dB49-77

14 50 dB24-74

28 dB49-77


Whole Body - Wc

Notes:





RMS Range dBµV

Peak Range dBµV

Noise Floor dBµV

RMS Range dBµV

Peak Range dBµV

Noise Floor dBµV

RMS Range dBµV

Peak Range dBµV

0 dB See Note 1

60 dB74-134

38 dB99-137

See Note 1

60 dB74-134

38 dB99-137

See Note 1

60 dB74-134

38 dB99-137

20 dB See Note 1

60 dB54-114

38 dB79-117

See Note 1

60 dB54-114

38 dB79-117

See Note 1

60 dB54-114

38 dB79-117

40 dB See Note 1

60 dB34-94

38 dB59-97

See Note 1

60 dB34-94

38 dB59-97

See Note 1

60 dB34-94

38 dB59-97

60 dB 13 51 dB23-74

29 dB48-77

13 51 dB23-74

29 dB48-77

23 41 dB33-74

19 dB58-77


Whole Body - Wd, We

Notes:





RMS Range dBµV

Peak Range dBµV

Noise Floor dBµV

RMS Range dBµV

Peak Range dBµV

Noise Floor dBµV

RMS Range dBµV

Peak Range dBµV

0 dB See Note 1

60 dB74-134

38 dB99-137

See Note 1

60 dB74-134

38 dB99-137

See Note 1

60 dB74-134

38 dB99-137

20 dB See Note 1

60 dB54-114

38 dB79-117

See Note 1

60 dB54-114

38 dB79-117

See Note 1

60 dB54-114

38 dB79-117

40 dB See Note 1

60 dB34-94

38 dB59-97

See Note 1

60 dB34-94

38 dB59-97

See Note 1

60 dB34-94

38 dB59-97

60 dB 11 53 dB21-74

31 dB46-77

11 53 dB21-74

31 dB46-77

23 41 dB33-74

19 dB58-77


Whole Body - Wg

Notes:





RMS Range dBµV

Peak Range dBµV

Noise Floor dBµV

RMS Range dBµV

Peak Range dBµV

Noise Floor dBµV

RMS Range dBµV

Peak Range dBµV

0 dB See Note 1

60 dB74-134

38 dB99-137

See Note 1

60 dB74-134

38 dB99-137

See Note 1

60 dB74-134

38 dB99-137

20 dB See Note 1

60 dB54-114

38 dB79-117

See Note 1

60 dB54-114

38 dB79-117

See Note 1

60 dB54-114

38 dB79-117

40 dB 24 60 dB34-94

38 dB59-97

24 60 dB34-94

38 dB59-97

24 60 dB34-94

38 dB59-97

60 dB 14 50 dB24-74

28 dB49-77

14 50 dB24-74

28 dB49-77

14 50 dB24-74

28 dB49-77


Whole Body - Wb, Wj, Wk

Notes:





RMS Range dBµV

Peak Range dBµV

Noise Floor dBµV

RMS Range dBµV

Peak Range dBµV

Noise Floor dBµV

RMS Range dBµV

Peak Range dBµV

0 dB See Note 1

60 dB74-134

38 dB99-137

See Note 1

60 dB74-134

38 dB99-137

See Note 1

60 dB74-134

38 dB99-137

20 dB See Note 1

60 dB54-114

38 dB79-117

See Note 1

60 dB54-114

38 dB79-117

See Note 1

60 dB54-114

38 dB79-117

40 dB 24 60 dB34-94

38 dB59-97

24 60 dB34-94

38 dB59-97

24 60 dB34-94

38 dB59-97

60 dB 13 51 dB23-74

29 dB48-77

13 51 dB23-74

29 dB48-77

18 46 dB28-74

24 dB53-77


A P P E N D I X

B Glossary

The following appendix contains definitions and explana-tions of terminology used in the HVM100

Table of equations

The following table gives many of the calculations the HVMperforms to arrive at the results reported by the instrument.

Description Equation

RMS Acceleration

T= Integration time in seconds.aw

(t) = instantaneous acceleration.t = Time, in seconds.

The Aeq integration time is from Run to Reset; the display is updated once per second.

RMS Acceleration in Decibels

ao = reference acceleration, 10-6 m/s2 or 10-5 m/s2 (user selectable)

Aeq1T--- aw

2t td

0

T

=

Aeq 20Log1T---

aw2

t

ao2

------------- td Bd0

T

=

HVM100 Manual Glossary B-1

Allowed Exposure Time

Energy Equivalent RMS Acceleration

The HVM100 measures the following quantities:

Running RMS Acceleration LINEAR

Integration time, in seconds.to = Observation time

The linear Arms integration time is controlled by the Averaging time setting; a new linear Arms value is calculated and displayed at the end of each inte-gration period.


2.8m s2 Aeq 2

8hours

A 8 18Hours------------------- aw

2t td

0

T

=

A 4 14Hours------------------- aw

2t td

0

T

=

A 2 12Hours------------------- aw

2t td

0

T

=

A 1 11Hours------------------- aw

2t td

0

T

=

Arms1--- aw

2t td

t0

t0

=

-

B-2 Table of equations HVM100 Manual

Running RMS Acceleration EXPONENTIAL

Time constant of the measurement.

An averaging time of SLOW is equivalent to a time constant of 1 second.

Vibration Dose Value

The VDV integration time is from Run to Reset; the display is updated once per second. The VDV is not calculated for units of dB or g.

Maximum Transient Vibration Value

Amax = maximum reading of all Arms readings from Run to Reset.

The display is updated at the end of each Averaging time period.

Minimum Transient Vibration Value

Amin = minimum reading of all Arms readings from Run to Reset.

The display is updated at the end of each Averaging time period.

Long Term Maximum Peak

Amp = peak level of the instantaneous weighted acceleration, aw(t); measured over the entire measurement period, from Run to Reset.

The displayed Amp value is updated once per second.


Arms1--- aw

2t

t t0

------ exp td

t0

=

-

-

VDV aw4

t td

0

T

14---

=

HVM100 Manual Table of equations B-3

Short Term Maximum Peak

Peak = peak level of the instantaneous weighted acceleration, aw(t); measured during one Averaging time period.

The peak measurement period is controlled by the Averaging time setting; a

new Peak value is calculated and displayed at the end of each Averaging

time period.

Long Term Crest Factor

The CFmp measurement period is from Run to Reset; the display is updated once per second.

Short Term Crest Factor

The CF measurement period is controlled by the Averaging time setting; a new CF value is calculated and displayed at the end of each Averaging time period. CF is not calculated if the Averaging time setting is SLOW.

Summed Instantaneous Acceleration

aw(t) = instantaneous, summed accelerationawx(t), awy(t), awz(t) = X, Y, and Z axis instantaneous accelerationKx,Ky,Kz = X, Y, and Z axis Sum Factors

The HVM100 uses the formula above to calculate the instantaneous, summed acceleration, aw(t). This value is then used to calculate a sum quantity for the Arms, Aeq, Peak, VDV, and other metrics.


CFmp AmpAeq-----------=

CF PeakArms-------------=

Kxawx t 2Kyawy t 2

+ Kzawz t 2+

B-4 Table of equations HVM100 Manual

A P P E N D I X

C Serial Interface Commands

The HVM100 is equipped with a serial port for communica-tions with any standard RS-232 device. The most commonuse for this interface would be to either print, or to create acustom software program that can interface with theHVM100. The following is a list of commands and theirdescriptions to assist a programmer in communicating withthe HVM100.

Setup and Query Commands

The setup/query commands are used to control the settingsand query the status of the HVM100 parameters. The first 20commands (S1 - S19, and Q1 - Q19) are reserved for systemparameters. System parameter settings remain the sameregardless of the operating mode. The remaining commands(S20 - S99, and Q20 - Q99) are for mode specific parame-ters. Mode specific parameter selections can vary based onthe selected operating mode.

Setup commands can be sent at any time. If the HVM100 isrunning, and changing the parameter requires a reset, thenthe setup command will cause the instrument to automati-cally stop, reset, change the parameter setting and start run-ning again. Query commands do not require a stop and resetof the HVM100.

Syntax for setup commands

The syntax for a setup command is Snn,i. The nn specifiesthe number of the parameter and ‘i’ is the desired setting.

HVM100 Manual Serial Interface Commands C-1

The HVM100 returns an ‘OK’ for valid setup commandsand ‘NA’ for invalid commands.

Syntax for Query commands

The syntax for a query command is Qnn. The nn specifiesthe parameter to be queried. The HVM100 responds to aquery command by returning the current setting of theparameter. For indexed parameters (i.e. parameters forwhich there is a specific set of choices) the HVM100 returnsthe index number (i.e. 0, 1, 2, etc.). For alphanumericparameters the HVM100 returns an ASCII string.

System Parameters (Q’s and S’s)

The following parameters are independent of the selectedoperating mode.

Command Parameter Setting

S0,yy Date: Year yy (00 to 99, 99 = 1999, 00 = 2000, 98 = 2098)

S1,mm Date: Month mm (01 to 12)

S2, dd Date: Day dd (01 to 31)

S3, hh Time: Hour hh (00 to 23)

S4, mm Time: Minute mm (00 to 59)

S5, ss Time: Second ss (00 to 59)

S6, . . . Report Header 0 . . . = 1 to 16 characters


C-2 System Parameters (Q’s and S’s) HVM100 Manual

Mode Specific Parameters

The following parameters are dependent on which operatingmode is selected:


S9, i Baud Rate i = 0 to 3

0 = 24001 = 96002 = 38.4k3 = 115.2k

NOTE: The baud rate change takes effect immediately afterthe “OK” response from the HVM100

Command Parameter Setting

Command Parameter Vibration Hand Arm Whole Body

S20, i Operating Mode i = 0 to 2

0 = Vibration1 = Hand Arm2 = Whole Body

i = 0 to 2


i = 0 to 2


S21, i Detector Rate i = 0 to 7

0 = Slow1 = 12 = 23 = 54 = 105 = 206 = 307 = 60

i = 0 to 7

0 = Slow1 = 12 = 23 = 54 = 105 = 206 = 307 = 60

i = 0 to 7

0 = Slow1 = 12 = 23 = 54 = 105 = 206 = 307 = 60

HVM100 Manual System Parameters (Q’s and S’s) C-3

S22, i Gain X i = 0 to 3

0 = 01 = 202 = 403 = 60

i = 0 to 3

0 = 01 = 202 = 403 = 60

i = 0 to 3

0 = 01 = 202 = 403 = 60

S23, i Gain Y i = 0 to 3

0 = 01 = 202 = 403 = 60

i = 0 to 3

0 = 01 = 202 = 403 = 60

i = 0 to 3

0 = 01 = 202 = 403 = 60

S24, i Gain Z i = 0 to 3

0 = 01 = 202 = 403 = 60

i = 0 to 3

0 = 01 = 202 = 403 = 60

i = 0 to 3

0 = 01 = 202 = 403 = 60

S25 Reserved

S26 Reserved

S27 Reserved

S28, hh Store Time: Hour hh = 00 to 99 hh = 00 to 99 hh = 00 to 99

S29, mm Store Time: Min-ute

mm = 01 to 59 mm = 01 to 59 mm = 01 to 59

S30, i Accelerometer i = 0 to 2

0 = Direct1 = ICP2 = Charge

i = 0 to 2


i = 0 to 2




S31, i Display Units i = 0 to 5

0 = m/s2

1 = cm/s2

2 = ft/s2

3 = in/s2

4 = g5 = dB

i = 0 to 5

0 = m/s2

1 = cm/s2

2 = ft/s2

3 = in/s2

4 = g5 = dB

i = 0 to 5

0 = m/s2

1 = cm/s2

2 = ft/s2

3 = in/s2

4 = g5 = dB

S32, i Integration i = 0 to 2

0 = None1 = Single2 = Double

Not Used Not Used

S33 Reserved

S34, nn Sum FactorKx

nn = 00 to 99(Stored as tenths, i.e. 23 = 2.3)



S35, nn Sum Factor Ky




S36, nn Sum FactorKz




S37, i Weighting X i = 0 to 3

0 = Ws1 = Fa2 = Fb3 = Fc

Not Used(Only Wh weighting is available.)

i = 5 to 12

5 = Wm6 = Wb7 = Wc8 = Wd9= We10= Wg11 = Wj12 = Wk



S38, i Weighting Y i = 0 to 3

0 = Ws1 = Fa2 = Fb3 = Fc


i = 5 to 11


S39, i Weighting Z i = 0 to 3

0 = Ws1 = Fa2 = Fb3 = Fc


i = 5 to 11


S40, i AC/DC OutputX

i = 0 to 9

0 = AC: Weighted1 = AC: Bandlimit2 = DC: rms3 = DC: min4 = DC: max5 = DC: peak6 = DC: rms 7 = DC: min 8 = DC: max 9 = DC: peak

i = 0 to 9


i = 0 to 9




S41, i AC/DC OutputY

i = 0 to 9


i = 0 to 9


i = 0 to 9


S42, i AC/DC OutputZ

i = 0 to 9


i = 0 to 9


i = 0 to 9


S43, i Auto Store i = 0 to 2

0 = Off1 = On2 = AutoStop

i = 0 to 2


i = 0 to 2


S44, i History Value i = 0 to 1

0 = None 1 = Peak

i = 0 to 1

0 = None 1 = Peak

i = 0 to 1

0 = None 1 = Peak

S45 Setup/ File Name . . . = 1 to12 characters

. . . = 1 to12 characters

. . . = 1 to12 characters



S46 Sensitivity X

Enter command as S46,n.nnne±nn

n.nnne±nn = Sensitivity of accelerometer.

Units:mV/g for Directand ICP.pC/g for Charge





S47 Sensitivity Y








S48 Sensitivity Z








S49 Cal Level


n.nnne±nn = Output level of calibrator

Units are g


Units are g


Units are g

S50, i Print History i = 0 to 1

0 = No1 = Yes

i = 0 to 1

0 = No1 = Yes

i = 0 to 1

0 = No1 = Yes



Read Data Commands

NOTE: An R1 command returns the fol-lowing data: Larson Davis HVM100nnnnn rev x.xx (nnnnn is the 5 digitserial number and x.xx is the firmwarerevision). Not to be confused with Rx1,Ry1, Rz1 or Rs1.

The read commands are used to read data from the data buf-fer. The syntax for a read command is Rcnn. The c indicateswhich channel to read (X, Y, Z, or S). The nn indicateswhich data to read.

Hint: The HVM100 always returns data in decibels, referenced to (10-6 m/s2).

S51, i dB reference i = 0 to 1

0 = 1e-05 m/s^21 = 1e-06 m/s^2

i = 0 to 1

0 = 1e-05 m/s^21 = 1e-06 m/s^2

i = 0 to 1

0 = 1e-05 m/s^21 = 1e-06 m/s^2

S52, i Exposure re. Hand Arm Exposure action value

Not applicable to this mode, but can be set or read

i = 0 to 20 = 2.8 m/s^21 = 2.5 m/s^22 = 5.0 m/s^2

Not applicable to this mode, but can be set or read


R Command nn Vibration Hand Arm Whole Body

0 Elapsed Time Elapsed Time Elapsed Time

1 Arms Arms Arms

2 Amin Amin Amin

3 Amax Amax Amax

4 PEAK PEAK PEAK

5 Amp Amp Amp

6 Aeq Aeq Aeq

7 Unused Aeq1 Unused



HVM100 Manual Read Data Commands C-9

Read Time History Commands

The read time history commands are used to read data fromthe time history buffer. The syntax for this command isHcnnn,i. The c indicates which channel to read (X, Y, Z, orS). The nnn is an index for indicating which sample to read.

Example: nnn = 0 is the last sample stored, nnn = 1, is the next to last samplestored.

The i indicates which data to read (i = 0 for Arms, or i = 1for Peak). The commands listed in the following table arealso available. The date information (H0 - H5) refers to thestarting date/time of the first history record.

Hint: The HVM100 always returns data in decibels, referenced to (10-6 m/s2).


11 Unused Unused VDV

12 Unused Unused CF

13 Unused Unused CFmp

14 Unused Allowed Exposure Time

Unused

R Command nn Vibration Hand Arm Whole Body

Command Parameter Settings

H0 History: Year YY (00 to 99, 99 = 1999, 00 = 2000, 98 = 2098)

H1 History: Month mm (01 to 12)

H2 History: Day dd (01 to 31)

H3 History: Hour hh (00 to 23)

C-10 Read Time History Commands HVM100 Manual

H4 History: Minute mm (00 to 59)

H5 History: Second ss (00 to 59)

H6 Number of Samples 000 to 239

H7 Number of Wraps Returns the number of times the buffer has been completely filled. After the buffer is filled, new data is simply written over the existing data. (i.e. the buffer always contains the last 240 samples, or 120 samples if Peak is also stored.)

Command Parameter Settings

1 = Running1 = Paused (!)

0 = stopped0 = Not Paused

1 = File Data 0 = Not Paused

1 = X is currently overloaded1 = Y is currently overloaded1 = Z is currently overloaded

1 = X is currently overloaded since reset1 = Y is currently overloaded1 = Z is currently overloaded

HVM100 Manual Read Time History Commands C-11

Control Commands

Command Description Notes

M0 Status This command returns 3 ASCII bytes separated by commas (i.e. bye1, byte2, byte3). For example, for a status of 4, 3, 7, the 4 indicates that the currently available data (currently dis-played data) is file data. The 4 also indicates that a pause did not occur during the time the data was collected. Finally, the 4 also conveys that the instrument is currently stopped. The 3 indicates that the X and Y channels are currently overloaded. The 7 indicates that the X, Y, Z latching overload indicators are all set.

The 3 least significant bits of each byte are used to communi-cate status information as shown below.

Byte1 xxxxxnnn

Byte2 xxxxxnnn

Byte3 xxxxxnnn

M1 Run HVM100 returns “OK” for valid command.

M2 Stop HVM100 returns “OK” for valid command.

M3 Reset HVM100 returns “OK” for valid command.

M4, n Store Setupn = 0 to 9

HVM100 will store the current setup in the setup register indicated by n (0 is default). Returns “OK” for valid com-mand.

C-12 Control Commands HVM100 Manual

M5, n Recall Setupn = 0 to 99

HVM100 will recall the setup indicated by n (0 is default). Returns “OK” for valid command.

Returns “NO” if a setup has never been stored in the nth setup location.

M6, n Store Filen = 0 to 99

HVM100 will store a file in the location specified by n (0 is default). Returns “OK” for valid command.

M7, n Recall Filen = 0 to 99

HVM100 will recall the file specified by n (0 is default). Returns “OK” for valid command.

Returns “NO” if a file has never been stored in the nth file location.

Returns “NA” if the file location is not available (i.e. less than 0 or greater than 99).

M8, n File Empty?n = 0 to 99

HVM100 will respond as to whether or not the file indicated by n (0 is default) is empty (1 = full, 0 = empty).

M9 Reserved

M10 Print HVM100 will print report

M11 Battery HVM returns current battery level (volts)

M12 External Power HVM returns current external power level (volts)

M13 Reserved

M123459 Erase Setups Erases all setups (HVM100 responds to command by count-ing down from 9 to 0 while erasing setups), final response is “OK”

M123457 Erase Files Erases all files (HVM100 responds to command by counting down from 9 to 0 while erasing

Command Description Notes

HVM100 Manual Control Commands C-13

C-14 Control Commands HVM100 Manual

A P P E N D I X

D Frequency Response Curves

The following are typical frequency response curves for theHVM100. Specifications are subject to change withoutnotice. Numerical values given are typical. Refer to specificcalibration or test results for accurate data on a specific unit.

HVM100 Manual Frequency Response Curves D-1

D-2 HVM100 Manual

HVM100 Manual D-3

D-4 HVM100 Manual

HVM100 Manual D-5

D-6 HVM100 Manual

HVM100 Manual D-7

D-8 HVM100 Manual

HVM100 Manual D-9

D-10 HVM100 Manual

HVM100 Manual D-11

D-12 HVM100 Manual

HVM100 Manual D-13

D-14 HVM100 Manual

A P P E N D I X

E Miscellaneous Information

This appendix contains additional information about the ACand DC outputs and measurement ranges for Hand-arm andWhole Body measurements.

DC Output Calibration

Since the sensitivity will vary a little from unit to unit, theDC output sensitivity should be calibrated, or measured,before it is used. Follow these steps to measure the DC out-put sensitivity.

Step 1 Calibrate the HVM100 for the accelerometer that will be used.

Step 2 Setup the HVM100 with the following settings:

a. Operating Mode 000000= Vibration

b. Averaging 0000000000 = Slow

c. Auto Store 0000000000= Off

d. Weighting00000000000= Fc (all channels)

e. Integration0000000000 = None

f. AC/DC Output0000000= DC: rms (all channels)

Step 3 The gain setting depends upon the sensitivity of the accelerometer being used. The table below shows the appropriate gain setting (for all chan-

HVM100 Manual Miscellaneous Information E-1

nels) based on the sensitivity of the accelerometer. The values in the table assume that a calibrator that vibrates 1g rms and 159.15 Hz, will be used.

Gain setting for various accelerometer sensitivities

Step 4 Connect a DC rms voltmeter to the DC output.

Step 5 Turn on the calibrator and start the HVM100 run-ning. The HVM100 should display an Arms level of 1 g.

Step 6 Note the voltage reading on the voltmeter. The voltage corresponds to 1 g rms of acceleration. The voltage will typically be about 600 mV for a 1 g rms input signal.

Step 7 Stop and Reset the HVM100. Reduce the calibra-tor’s output level to 0.1 g rms. If this isn’t possi-ble, change the HVM100’s weighting to Wh (Hand-Arm mode). The Wh weighting will attenu-ate the calibrator’s signal to 0.1 g rms (an attenua-tion of 20.0 dB).

Step 8 Turn on the calibrator and start the HVM100 run-ning. The HVM100 should display an Arms level of 0.1 g.

Step 9 Note the voltage reading on the voltmeter. The voltage corresponds to 0.1 g rms of acceleration. The voltage will typically be about 500 mV for a 0.1 g rms input signal.

Step 10 The DC output uses a logarithmic scale. The for-mula for the sensitivity is:

1 mV/g 10 mV/g 100 mV/g

Gain 60 dB 40 dB 20 dB

DC output sensitivity = (voltage at 1g) - (voltage at 0.1g)__________________________

20 dB

E-2 DC Output Calibration HVM100 Manual

NOTE: Using the typical values of 600 mV (1g) and 500 mV(0.1g), the calculated sensitivity would be 5 mV/dB. Notethat the sensitivity is the same regardless of the DC outputsetting (i.e. rms, sum, min, max, peak).

Step 11 To convert a DC output voltage to units of g, use the following formula:

NOTE: The formula is the same regardless of whether theDC output is being used to measure rms, min, max, or peakacceleration. The only difference is the reference voltage(i.e. the voltage @ 1g). If the DC output is set for rms, min,or max, the reference voltage is the voltage @ 1g rms. If theDC output is set to peak, the reference voltage is the voltage@ 1g peak.

AC/DC Outputs

DC Output

For all of the Analog AC and Analog DC outputs, the outputimpedance of the HVM100 is 475 ohms. For minimal error,connect to instruments with an input impedance of greaterthan 100,000 ohms when making AC or DC output measure-ments.

DC output sensitivity = 5 mV/dB (typical). The level variesbetween 0 Vdc to 1.0 Vdc.

goutput 20 10 presentvoltage voltage1g– DCoutputsensitivity =

HVM100 Manual AC/DC Outputs E-3

Since the sensitivity is fixed at approximately 5 mV/dB, theDC output signal is not affected by the user’s selection for“display units” or the user’s selection of the dB referencevalue (i.e. 10-6 m/s2 or 10-5 m/s2).

The DC output is tied directly to the rms, min, max, andpeak values measured by the HVM100; therefore, the DCoutput signal is not available if the instrument has beenRESET. If the instrument is in a RESET condition, the DCoutput level will be at approximately -300 mV.

The DC output range covers the entire measurement rangeof the HVM100. In other words, the DC output signal levelis not affected by the gain settings.

AC Output

The maximum signal produced by the AC output is approxi-mately 0.5 Vrms. However, the maximum input level mea-surable by the HVM100 is approximately 5.0 Vrms (adifference of 20 dB). Therefore, in order for the HVM100’sAC output to function properly with each range (i.e. gainsettings of 0, 20, 40, and 60 dB), the HVM100’s gain set-tings also affect the AC output signals. For example, with again setting of 0 dB, the HVM100 can measure input signalsas large as 5.0 Vrms. Since these signals exceed the AC out-put range, they are attenuated to 0.5 Vrms (a gain of -20 dB)so that they can be reproduced by the AC output. The tablebelow shows the correlation between input signal level andAC output signal level.

AC Output Gain

RANGE (Gain Setting)

INPUTMaximum Signal

Level (Vrms)

AC OUTPUT Gain AC OUTPUTMaximum Signal Level

(Vrms)

0 dB 5.0 -20 dB 0.5 Vrms

20 dB 0.5 0 dB 0.5 Vrms

40 dB 0.05 +20 dB 0.5 Vrms

60 dB 0.005 +40 dB 0.5 Vrms

E-4 AC/DC Outputs HVM100 Manual

Typical Measurement Ranges for Hand-Arm and Whole Body Measurements

ICP Accelerometers

Hand-Arm (Wh) and Whole Body (Wm, Wc, Wd, We, Wb, Wf, Wk)

Hand-Arm (Wh)

1 mV/g 10 mV/g 100 mV/g

Gain RMSRange

g

Peak Range

g

RMSRange

g

PeakRange

g

RMS Range

g

PeakRange

g

0 dB 5-5000 90-7000 0.5-500 9-700 0.05-50 0.9-70

20 dB 0.5-500 9-700 0.05-50 0.9-70 0.005-5 0.09-7

40 dB 0.0‘5-50 0.9-70 0.005-5 0.09-7 0.0005-0.5 0.009-0.7

1 mV/g 10 mV/g 100 mV/g

Gain RMSRange

g

Peak Range

g

RMSRange

g

PeakRange

g

RMS Range

g

PeakRange

g

60 dB 0.01-5 0.2-7 0.001-0.5 0.02-0.7 0.0001-0.05 0.002-0.07

HVM100 ManualTypical Measurement Ranges for Hand-Arm and Whole Body Measurements E-5

Whole-Body (Wm, Wg)

Whole-Body (Wc, Wd, We)

Whole-Body (Wb, Wf, Wk)

Notes

1. The data in the above tables was calculated using the dBuV range data in the HVM100 User Manual.

2. The data in the above table was obtained by electrically testing the HVM100.

3. The data is based on ideal accelerometers (the noise floor and upper limit of the accelerometer were not consid-ered).

1 mV/g 10 mV/g 100 mV/g

Gain RMSRange

g

Peak Range

g

RMSRange

g

PeakRange

g

RMS Range

g

PeakRange

g

60 dB 0.02-5 0.3-7 0.002-0.5 0.03-0.7 0.0002-0.05 0.003-0.07

1 mV/g 10 mV/g 100 mV/g

Gain RMSRange

g

Peak Range

g

RMSRange

g

PeakRange

g

RMS Range

g

PeakRange

g

60 dB 0.05-5 0.8-7 0.005-0.5 0.08-0.7 0.0005-0.05 0.008-0.07

1 mV/g 10 mV/g 100 mV/g

Gain RMSRange

g

Peak Range

g

RMSRange

g

PeakRange

g

RMS Range

g

PeakRange

g

60 dB 0.03-5 0.5-7 0.003-0.5 0.05-0.7 0.0003-0.05 0.005-0.07

E-6 Typical Measurement Ranges for Hand-Arm and Whole Body Measurements HVM100

Typical Measurement Ranges for General Purpose Vibration Measurements

ICP Accelerometers

Fa, Fb, Fc, Ws Weighting

Fa Weighting

1 mV/g 10 mV/g 100 mV/g

Gain RMSRange

g

Peak Range

g

RMSRange

g

PeakRange

g

RMS Range

g

PeakRange

g

0 dB 5-5000 90-7000 0.5-500 9-700 0.05-50 0.9-70

20 dB 0.5-500 9-700 0.05-50 0.9-70 0.005-5 0.09-7

1 mV/g 10 mV/g 100 mV/g

Gain RMSRange

g

Peak Range

g

RMSRange

g

PeakRange

g

RMS Range

g

PeakRange

g

40 dB 0.06-50 1.1-70 0.006-5 0.11-7 0.0006-0.5 0.011-0.7

60 dB 0.04-5 0.8-7 0.004-0.5 0.08-0.7 0.0004-0.05 0.008-0.07

HVM100 ManualTypical Measurement Ranges for General Purpose Vibration Measurements E-7

Fb, Fc, Ws Weighting

Notes

1. The data in the above tables was calculated using the dBuV range data in the HVM100 User Manual.

2. The data in the above table was obtained by electrically testing the HVM100.

3. The data is based on ideal accelerometers (the noise floor and upper limit of the accelerometer were not consid-

ered).

1 mV/g 10 mV/g 100 mV/g

Gain RMSRange

g

Peak Range

g

RMSRange

g

PeakRange

g

RMS Range

g

PeakRange

g

40 dB 0.1-50 1.8-70 0.01-5 0.18-7 0.001-0.5 0.018-0.7

60 dB 0.04-5 0.8-7 0.004-0.5 0.08-0.7 0.0004-0.05 0.008-0.07

E-8 Typical Measurement Ranges for General Purpose Vibration Measurements HVM100

A P P E N D I X

F Serial Number Backup

Setting Serial Number Backup

The first time the HVM is booted up after having the serialnumber programmed, the code will detect that the backupcopies are blank and set them. The following display willappear at this time.

This should happen before the unit leaves Larson Davis, andthe only time a user will see this message is if the backupcopies are cleared. After this is done, the unit will continueto operate as normal. This display lasts 3 seconds.

Serial Number Reset

If for some reason the serial number gets corrupted, the codewill detect the problem and reset it from the backup copies(the two backups need to match each other). The followingdisplay will appear at this time.

Press the reset key to proceed. After this is done, the unitwill continue to operate as normal. This display lasts 3seconds.

Setting BackupSN copies...

Serial NumberReset to Backup.

HVM100 Manual Serial Number Backup F-1

Failure of Serial Number Reset

Note: there is an extremely lowprobability that this condition willoccur. However, it is documentedhere for your reference.

If there is not a two-of-three agreement between any of theserial number copies, the following two displays will appearin sequence for three seconds.

Following this, the meter will continue to boot as normal,EXCEPT that none of the purchased options will beavailable. Technical support from Larson Davis is requiredto remedy this situation.

SERIAL NUMBERERROR DETECTED!

Service Required

F-2 HVM100 Manual

IndexA

AC Output........................................................................................................................................E-4AC Output Gain ...............................................................................................................................E-4AC/DC Connector Output Connector.............................................................................................. 9-6AC/DC Output Settings ................................................................................................................... 3-7AC/DC Outputs................................................................................................................................E-3Accelerometer Selection .................................................................................................................. 1-5Accelerometer Type......................................................................................................................... 3-1Adaptor Frequency Response ........................................................................................................ 10-1Alpha Numeric Menu function ........................................................................................................ 2-2Auto Range ...................................................................................................................................... 4-1

B

Band Limiting Filters..................................................................................................................... 1-11Batteries ........................................................................................................................................... 8-1battery voltage.................................................................................................................................. 8-1Baud Rate......................................................................................................................................... 3-8

C

Cal Level.......................................................................................................................................... 4-2Calendar .......................................................................................................................................... A-3Calibration ....................................................................................................................................... 4-3Calibration Frequency..................................................................................................................... A-7Calibration Vibration ...................................................................................................................... A-7Characteristics................................................................................................................................. A-1Charge Input ................................................................................................................................... A-6Charge mode sensors ....................................................................................................................... 1-5Checking Battery Voltage................................................................................................................ 8-1Clock............................................................................................................................................... A-3Connections

AC/DC Output Connector ........................................................................................................ 9-1External Power.......................................................................................................................... 9-1Input Connector ........................................................................................................................ 9-1Serial Port ................................................................................................................................. 9-1

Connections on the HVM100 .......................................................................................................... 9-1

D

Data Communications..................................................................................................................... A-3Data Key .......................................................................................................................................... 7-6Data Storage.................................................................................................................................... A-3

HVM100 Manual Index iii-i

Date and Time ................................................................................................................................3-12DC Output .................................................................................................................................3-7,E-3DC Output Calibration .................................................................................................................... E-1Declaration of Conformity ..............................................................................................................A-4Digital Display.................................................................................................................................A-3Dimensions/Weight .........................................................................................................................A-3Direct Input......................................................................................................................................A-5Display Units ....................................................................................................................................3-2

E

Effects of Humidity .........................................................................................................................A-2Effects of Magnetic Fields...............................................................................................................A-2Effects of Mechanical Vibrations....................................................................................................A-2Effects of Temperature .............................................................................................................A-2,E-2Electrical Impedance .......................................................................................................................A-5Erasing Files .....................................................................................................................................3-9Erasing Setups ................................................................................................................................3-10External Power .................................................................................................................................8-4External Power Connection..............................................................................................................9-5

Larson Davis adapter.................................................................................................................9-5Pinout ........................................................................................................................................9-5

F

Frequency range ...............................................................................................................................1-6Frequency Weighting Curves ..........................................................................................................A-8

Fa (Flat 0.4 Hz to 100 Hz)........................................................................................................A-8Fb (Flat 0.4 Hz to 1260 Hz) .....................................................................................................A-9Fc (Flat 6.3 Hz to 1260 Hz), Wh, and Ws..............................................................................A-12WB (Whole Body) .................................................................................................................A-15Wc, Wd, We, Wj, and Wk......................................................................................................A-13

Frequency weighting Selections.....................................................................................................1-10

G

Gain ..................................................................................................................................................4-2General Characteristics....................................................................................................................A-1

H

Hand ArmWh ...........................................................................................................................................1-10

Hand Arm Mode Weighting.............................................................................................................2-9Handshaking .....................................................................................................................................3-8Headers ...........................................................................................................................................3-11History Key ......................................................................................................................................7-3

iii-ii Index HVM100 Manual

Humidity ......................................................................................................................................... A-2Hyperterminal .................................................................................................................................. 5-1

I

ICP accelerometers .......................................................................................................................... 1-5ICP Input......................................................................................................................................... A-5Indexed Menu Function ................................................................................................................... 2-3Installing new batteries .................................................................................................................... 8-1Integration ........................................................................................................................................ 3-3

K

Key Board Functions ....................................................................................................................... 2-4

L

Language........................................................................................................................................ 3-12Limits of Temperature and Humidity ............................................................................................. A-2

M

Magnetic Fields............................................................................................................................... A-2Mechanical Vibrations .................................................................................................................... A-2Menu Function

Indexed ..................................................................................................................................... 2-3Menu function

Alpha Numeric.......................................................................................................................... 2-2Menu Navigation ............................................................................................................................. 2-1Modes of Operation ....................................................................................................................... 1-10

N

new batteries .................................................................................................................................... 8-1

O

On Switch ........................................................................................................................................ 2-1Outputs............................................................................................................................................ A-5Overload Detection .......................................................................................................................... 7-1

P

Power Supply .................................................................................................................................. A-3Powering the HVM100.................................................................................................................... 8-1Print History..................................................................................................................................... 3-8Printing............................................................................................................................................. 5-1Printing to a Windows Hyperterminal ............................................................................................. 5-1

HVM100 Manual Index iii-iii

R

Range Key ........................................................................................................................................4-1Auto Range................................................................................................................................4-1Cal Level ...................................................................................................................................4-2Calibrate X,Y,Z .........................................................................................................................4-3Gain X,Y,Z................................................................................................................................4-2Reference Acceleration .............................................................................................................4-5Sensitivity X,Y,Z.......................................................................................................................4-4

Range Menu......................................................................................................................................4-1Real-time Clock/Calendar ...............................................................................................................A-3Recall Key

Recalling a File..........................................................................................................................6-8Recalling a Setup.......................................................................................................................6-6

Recalling Data ..................................................................................................................................6-1Recalling Setups ...............................................................................................................................6-1Reference Acceleration ............................................................................................................ 4-5,A-6Reference Calibration Frequency ....................................................................................................A-7Reference Calibration Vibration......................................................................................................A-7remaining battery voltage .................................................................................................................8-1Run/Stop Key ...................................................................................................................................7-1Run-time Clock ...............................................................................................................................A-3

S

Screen Symbols ................................................................................................................................7-1Second History .................................................................................................................................7-5Selecting a Transducer .....................................................................................................................1-5Sensitivity .........................................................................................................................................4-4Serial Interface Port ..........................................................................................................................9-2

Cables used................................................................................................................................9-3Pinout ........................................................................................................................................9-2

Serial Number BackupFailure....................................................................................................................................... F-2Reset ......................................................................................................................................... F-1Setting....................................................................................................................................... F-1

Serial Port .........................................................................................................................................5-1Setup Key .........................................................................................................................................2-4

2nd History................................................................................................................................2-4Auto Store .................................................................................................................................2-4Averaging Time.........................................................................................................................2-4

Time History Settings ........................................................................................................2-4Mode Selection..........................................................................................................................2-4Store Time .................................................................................................................................2-4

Stabilization Time ...........................................................................................................................A-2Stop Key ...........................................................................................................................................7-1

iii-iv Index HVM100 Manual

Store KeyStoring a File............................................................................................................................. 6-3Storing a Setup.......................................................................................................................... 6-1

Storing Data ..................................................................................................................................... 6-1Storing Setups .................................................................................................................................. 6-1Sum Factor ....................................................................................................................................... 3-4Switch On ........................................................................................................................................ 2-1

T

Taking Measurements...................................................................................................................... 7-1Temperature .................................................................................................................................... A-2Time History Settings ...................................................................................................................... 2-6Tools Key......................................................................................................................................... 3-1

AC/DC Output .......................................................................................................................... 3-4AC/DC Output Settings..................................................................................................... 3-7

Accelerometer Type.................................................................................................................. 3-1Baud Rate.................................................................................................................................. 3-8

Handshaking ...................................................................................................................... 3-8Date and Time......................................................................................................................... 3-12Display Units ............................................................................................................................ 3-2Erase All Files........................................................................................................................... 3-9Erase Setups............................................................................................................................ 3-10Header 1,2,3............................................................................................................................ 3-11Integration................................................................................................................................. 3-3Language................................................................................................................................. 3-12Print History Selection.............................................................................................................. 3-8Sum Factor X,Y, Z.................................................................................................................... 3-4

Tools Menu ...................................................................................................................................... 3-1transducer......................................................................................................................................... 1-5Transducer Connection .................................................................................................................... 9-4

Pinout........................................................................................................................................ 9-4Transducers Electrical Impedance .................................................................................................. A-5Transverse sensitivity ...................................................................................................................... 1-6Type Precision ..........................................................................................................................A-1,E-1Typical Measurement Ranges for General Purpose Vibration Measurements................................E-7Typical Measurement Ranges for Hand-Arm and Whole Body Measurements .............................E-5Typical Measurements Ranges ..................................................................................................... A-20

Hand Arm - Wh ..................................................................................................................... A-22Vibration - Fa......................................................................................................................... A-20Vibration - Fb, Fc, Ws ........................................................................................................... A-21Whole Body - WB ................................................................................................................. A-23Whole Body - Wc .................................................................................................................. A-24Whole Body - Wd, We .......................................................................................................... A-25Whole Body - Wg.................................................................................................................. A-26

HVM100 Manual Index iii-v

Whole Body - Wj, Wk............................................................................................................A-27

U

Under-Range indicator .....................................................................................................................7-2Units .................................................................................................................................................3-2Using External Power.......................................................................................................................8-4

V

VibrationFa (0.4 Hz to 100 Hz)..............................................................................................................1-10Fb (0.4 Hz to 1250 Hz)............................................................................................................1-10Ws (Severity)...........................................................................................................................1-10

Vibration Mode Weighting...............................................................................................................2-8VibrationFc (6.3 Hz to 1250 Hz)....................................................................................................1-10Viewing Data....................................................................................................................................7-1Viewing Time History......................................................................................................................7-5

W

Weight .............................................................................................................................................A-3Whole Body

WB Wc Wd We Wg Wj Wk ...................................................................................................1-10Whole Body Weighting Mode..........................................................................................................2-9

iii-vi Index HVM100 Manual

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hvm100 manual - electronic version

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